mirror of
https://github.com/classilla/tenfourfox.git
synced 2024-09-10 11:54:40 +00:00
1484 lines
47 KiB
C++
1484 lines
47 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 "mozilla/DebugOnly.h"
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#include "nsCOMPtr.h"
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#include "nsFontMetrics.h"
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#include "nsTextControlFrame.h"
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#include "nsIPlaintextEditor.h"
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#include "nsCaret.h"
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#include "nsGenericHTMLElement.h"
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#include "nsIEditor.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 "nsIDOMHTMLTextAreaElement.h"
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#include "nsNameSpaceManager.h"
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#include "nsFormControlFrame.h" //for registering accesskeys
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#include "nsIContent.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 "nsIDOMElement.h"
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#include "nsIDOMHTMLElement.h"
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#include "nsIPresShell.h"
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#include <algorithm>
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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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#include "nsIDOMNode.h"
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#include "nsIDOMText.h" //for multiline getselection
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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/dom/Selection.h"
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#include "nsContentUtils.h"
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#include "nsTextNode.h"
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#include "nsStyleSet.h"
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#include "mozilla/dom/ScriptSettings.h"
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#include "mozilla/MathAlgorithms.h"
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#include "nsFrameSelection.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(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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a11y::AccType
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nsTextControlFrame::AccessibleType()
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{
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return a11y::eHTMLTextFieldType;
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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(nsStyleContext* aContext)
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: nsContainerFrame(aContext)
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, mEditorHasBeenInitialized(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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WritingMode aWM,
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LogicalSize& 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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RefPtr<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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lineHeight =
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nsHTMLReflowState::CalcLineHeight(GetContent(), StyleContext(),
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NS_AUTOHEIGHT, 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.ISize(aWM) = 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 we think we have a fixed-width font.
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if (mozilla::Abs(charWidth - charMaxAdvance) > (unsigned)nsPresContext::CSSPixelsToAppUnits(1)) {
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nscoord internalPadding =
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std::max(0, charMaxAdvance - 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.ISize(aWM) += 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.ISize(aWM) += 1;
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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 = StyleText()->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.ISize(aWM) += 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.BSize(aWM) = 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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LogicalMargin scrollbarSizes(aWM,
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scrollableFrame->GetDesiredScrollbarSizes(PresContext(),
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aRenderingContext));
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aIntrinsicSize.ISize(aWM) += scrollbarSizes.IStartEnd(aWM);
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aIntrinsicSize.BSize(aWM) += scrollbarSizes.BStartEnd(aWM);
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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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if (mEditorHasBeenInitialized)
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return NS_OK;
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nsIDocument* doc = mContent->GetComposedDoc();
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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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{
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nsCOMPtr<nsITextControlElement> txtCtrl = do_QueryInterface(GetContent());
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MOZ_ASSERT(txtCtrl, "Content not a text control element");
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// Hide selection changes during the initialization, as webpages should not
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// be aware of these initializations
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AutoHideSelectionChanges hideSelectionChanges(txtCtrl->GetConstFrameSelection());
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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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mozilla::dom::AutoNoJSAPI nojsapi;
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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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nsresult rv = txtCtrl->CreateEditor();
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NS_ENSURE_SUCCESS(rv, rv);
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NS_ENSURE_STATE(weakFrame.IsAlive());
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// Set mEditorHasBeenInitialized so that subsequent calls will use the
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// editor.
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mEditorHasBeenInitialized = 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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}
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NS_ENSURE_STATE(weakFrame.IsAlive());
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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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// Associate ::-moz-placeholder pseudo-element with the placeholder node.
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nsCSSPseudoElements::Type pseudoType =
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nsCSSPseudoElements::ePseudo_mozPlaceholder;
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RefPtr<nsStyleContext> placeholderStyleContext =
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PresContext()->StyleSet()->ResolvePseudoElementStyle(
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mContent->AsElement(), pseudoType, StyleContext(),
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placeholderNode->AsElement());
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if (!aElements.AppendElement(ContentInfo(placeholderNode,
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placeholderStyleContext))) {
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return NS_ERROR_OUT_OF_MEMORY;
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}
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if (!IsSingleLineTextControl()) {
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// For textareas, UpdateValueDisplay doesn't initialize the visibility
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// status of the placeholder because it returns early, so we have to
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// do that manually here.
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txtCtrl->UpdatePlaceholderVisibility(true);
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}
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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(nsTArray<nsIContent*>& 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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nsIContent* root = txtCtrl->GetRootEditorNode();
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if (root) {
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aElements.AppendElement(root);
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}
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nsIContent* placeholder = txtCtrl->GetPlaceholderNode();
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if (placeholder && !(aFilter & nsIContent::eSkipPlaceholderContent))
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aElements.AppendElement(placeholder);
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}
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nscoord
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nsTextControlFrame::GetPrefISize(nsRenderingContext* aRenderingContext)
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{
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DebugOnly<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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WritingMode wm = GetWritingMode();
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LogicalSize autoSize(wm);
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CalcIntrinsicSize(aRenderingContext, wm, autoSize, inflation);
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return autoSize.ISize(wm);
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}
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nscoord
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nsTextControlFrame::GetMinISize(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 = GetPrefISize(aRenderingContext);
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return result;
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}
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LogicalSize
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nsTextControlFrame::ComputeAutoSize(nsRenderingContext *aRenderingContext,
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WritingMode aWM,
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const LogicalSize& aCBSize,
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nscoord aAvailableISize,
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const LogicalSize& aMargin,
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const LogicalSize& aBorder,
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const LogicalSize& aPadding,
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bool aShrinkWrap)
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{
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float inflation = nsLayoutUtils::FontSizeInflationFor(this);
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LogicalSize autoSize(aWM);
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nsresult rv = CalcIntrinsicSize(aRenderingContext, aWM, autoSize, inflation);
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if (NS_FAILED(rv)) {
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// What now?
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autoSize.SizeTo(aWM, 0, 0);
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}
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#ifdef DEBUG
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// Note: Ancestor ComputeAutoSize only computes a width if we're auto-width
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else {
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const nsStyleCoord& inlineStyleCoord =
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aWM.IsVertical() ? StylePosition()->mHeight : StylePosition()->mWidth;
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if (inlineStyleCoord.GetUnit() == eStyleUnit_Auto) {
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LogicalSize ancestorAutoSize =
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nsContainerFrame::ComputeAutoSize(aRenderingContext, aWM,
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aCBSize, aAvailableISize,
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aMargin, aBorder,
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aPadding, aShrinkWrap);
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// Disabled when there's inflation; see comment in GetPrefSize.
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MOZ_ASSERT(inflation != 1.0f ||
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ancestorAutoSize.ISize(aWM) == autoSize.ISize(aWM),
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"Incorrect size computed by ComputeAutoSize?");
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}
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}
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#endif
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return autoSize;
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}
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void
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nsTextControlFrame::Reflow(nsPresContext* aPresContext,
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nsHTMLReflowMetrics& aDesiredSize,
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const nsHTMLReflowState& aReflowState,
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nsReflowStatus& aStatus)
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{
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MarkInReflow();
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DO_GLOBAL_REFLOW_COUNT("nsTextControlFrame");
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DISPLAY_REFLOW(aPresContext, this, aReflowState, aDesiredSize, aStatus);
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// 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
|
|
WritingMode wm = aReflowState.GetWritingMode();
|
|
LogicalSize
|
|
finalSize(wm,
|
|
aReflowState.ComputedISize() +
|
|
aReflowState.ComputedLogicalBorderPadding().IStartEnd(wm),
|
|
aReflowState.ComputedBSize() +
|
|
aReflowState.ComputedLogicalBorderPadding().BStartEnd(wm));
|
|
aDesiredSize.SetSize(wm, finalSize);
|
|
|
|
// computation of the ascent wrt the input height
|
|
nscoord lineHeight = aReflowState.ComputedBSize();
|
|
float inflation = nsLayoutUtils::FontSizeInflationFor(this);
|
|
if (!IsSingleLineTextControl()) {
|
|
lineHeight = nsHTMLReflowState::CalcLineHeight(GetContent(), StyleContext(),
|
|
NS_AUTOHEIGHT, inflation);
|
|
}
|
|
RefPtr<nsFontMetrics> fontMet;
|
|
nsLayoutUtils::GetFontMetricsForFrame(this, getter_AddRefs(fontMet),
|
|
inflation);
|
|
// now adjust for our borders and padding
|
|
aDesiredSize.SetBlockStartAscent(
|
|
nsLayoutUtils::GetCenteredFontBaseline(fontMet, lineHeight,
|
|
wm.IsLineInverted()) +
|
|
aReflowState.ComputedLogicalBorderPadding().BStart(wm));
|
|
|
|
// 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);
|
|
}
|
|
|
|
void
|
|
nsTextControlFrame::ReflowTextControlChild(nsIFrame* aKid,
|
|
nsPresContext* aPresContext,
|
|
const nsHTMLReflowState& aReflowState,
|
|
nsReflowStatus& aStatus,
|
|
nsHTMLReflowMetrics& aParentDesiredSize)
|
|
{
|
|
// compute available size and frame offsets for child
|
|
WritingMode wm = aKid->GetWritingMode();
|
|
LogicalSize availSize = aReflowState.ComputedSizeWithPadding(wm);
|
|
availSize.BSize(wm) = NS_UNCONSTRAINEDSIZE;
|
|
|
|
nsHTMLReflowState kidReflowState(aPresContext, aReflowState,
|
|
aKid, availSize, nullptr,
|
|
nsHTMLReflowState::CALLER_WILL_INIT);
|
|
// Override padding with our computed padding in case we got it from theming or percentage
|
|
kidReflowState.Init(aPresContext, nullptr, nullptr, &aReflowState.ComputedPhysicalPadding());
|
|
|
|
// Set computed width and computed height for the child
|
|
kidReflowState.SetComputedWidth(aReflowState.ComputedWidth());
|
|
kidReflowState.SetComputedHeight(aReflowState.ComputedHeight());
|
|
|
|
// Offset the frame by the size of the parent's border
|
|
nscoord xOffset = aReflowState.ComputedPhysicalBorderPadding().left -
|
|
aReflowState.ComputedPhysicalPadding().left;
|
|
nscoord yOffset = aReflowState.ComputedPhysicalBorderPadding().top -
|
|
aReflowState.ComputedPhysicalPadding().top;
|
|
|
|
// reflow the child
|
|
nsHTMLReflowMetrics desiredSize(aReflowState);
|
|
ReflowChild(aKid, aPresContext, desiredSize, kidReflowState,
|
|
xOffset, yOffset, 0, aStatus);
|
|
|
|
// place the child
|
|
FinishReflowChild(aKid, aPresContext, desiredSize,
|
|
&kidReflowState, 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 'dom.placeholeder.show_on_focus' preference is 'false', focusing or
|
|
// blurring the frame can have an impact on the placeholder visibility.
|
|
if (mUsePlaceholder) {
|
|
txtCtrl->UpdatePlaceholderVisibility(true);
|
|
}
|
|
|
|
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();
|
|
RefPtr<nsCaret> caret = presShell->GetCaret();
|
|
if (!caret) return;
|
|
|
|
// Scroll the current selection into view
|
|
nsISelection *caretSelection = caret->GetSelection();
|
|
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()->GetComposedDoc();
|
|
if (doc) {
|
|
nsIFocusManager* fm = nsFocusManager::GetFocusManager();
|
|
if (fm) {
|
|
fm->GetLastFocusMethod(doc->GetWindow(), &lastFocusMethod);
|
|
}
|
|
}
|
|
if (!(lastFocusMethod & nsIFocusManager::FLAG_BYMOUSE)) {
|
|
RefPtr<ScrollOnFocusEvent> event = new ScrollOnFocusEvent(this);
|
|
nsresult rv = NS_DispatchToCurrentThread(event);
|
|
if (NS_SUCCEEDED(rv)) {
|
|
mScrollEvent = event;
|
|
}
|
|
}
|
|
}
|
|
|
|
// tell the caret to use our selection
|
|
caret->SetSelection(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;
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
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.
|
|
|
|
RefPtr<nsRange> range = new nsRange(mContent);
|
|
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->IsHTMLElement(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 = std::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);
|
|
|
|
dom::Selection* sel = static_cast<dom::Selection*>(selection.get());
|
|
if (aDirection) {
|
|
nsDirection direction = sel->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;
|
|
}
|
|
|
|
mozilla::dom::Element* root = GetRootNodeAndInitializeEditor();
|
|
NS_ENSURE_STATE(root);
|
|
nsContentUtils::GetSelectionInTextControl(sel, root,
|
|
*aSelectionStart, *aSelectionEnd);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
/////END INTERFACE IMPLEMENTATIONS
|
|
|
|
////NSIFRAME
|
|
nsresult
|
|
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);
|
|
}
|
|
|
|
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);
|
|
}
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
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);
|
|
return NS_OK;
|
|
}
|
|
|
|
if (nsGkAtoms::disabled == aAttribute) {
|
|
uint32_t flags;
|
|
editor->GetFlags(&flags);
|
|
int16_t displaySelection = nsISelectionController::SELECTION_OFF;
|
|
const bool focused = nsContentUtils::IsFocusedContent(mContent);
|
|
const bool hasAttr = AttributeExists(nsGkAtoms::disabled);
|
|
if (hasAttr) { // set disabled
|
|
flags |= nsIPlaintextEditor::eEditorDisabledMask;
|
|
} else { // unset disabled
|
|
flags &= ~(nsIPlaintextEditor::eEditorDisabledMask);
|
|
displaySelection = focused ? nsISelectionController::SELECTION_ON
|
|
: nsISelectionController::SELECTION_HIDDEN;
|
|
}
|
|
selCon->SetDisplaySelection(displaySelection);
|
|
if (focused) {
|
|
selCon->SetCaretEnabled(!hasAttr);
|
|
}
|
|
editor->SetFlags(flags);
|
|
return NS_OK;
|
|
}
|
|
|
|
if (!mEditorHasBeenInitialized && nsGkAtoms::value == aAttribute) {
|
|
UpdateValueDisplay(true);
|
|
return NS_OK;
|
|
}
|
|
|
|
// Allow the base class to handle common attributes supported by all form
|
|
// elements...
|
|
return nsContainerFrame::AttributeChanged(aNameSpaceID, aAttribute, aModType);
|
|
}
|
|
|
|
|
|
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
|
|
|
|
void
|
|
nsTextControlFrame::SetInitialChildList(ChildListID aListID,
|
|
nsFrameList& aChildList)
|
|
{
|
|
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;
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
nsTextControlFrame::SetValueChanged(bool aValueChanged)
|
|
{
|
|
nsCOMPtr<nsITextControlElement> txtCtrl = do_QueryInterface(GetContent());
|
|
NS_ASSERTION(txtCtrl, "Content not a text control element");
|
|
|
|
if (mUsePlaceholder) {
|
|
nsWeakFrame weakFrame(this);
|
|
txtCtrl->UpdatePlaceholderVisibility(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(!mEditorHasBeenInitialized,
|
|
"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
|
|
RefPtr<nsTextNode> textNode =
|
|
new nsTextNode(mContent->NodeInfo()->NodeInfoManager());
|
|
|
|
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->UpdatePlaceholderVisibility(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(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(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;
|
|
}
|
|
|
|
nsresult
|
|
nsTextControlFrame::PeekOffset(nsPeekOffsetStruct *aPos)
|
|
{
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
void
|
|
nsTextControlFrame::BuildDisplayList(nsDisplayListBuilder* aBuilder,
|
|
const nsRect& aDirtyRect,
|
|
const nsDisplayListSet& aLists)
|
|
{
|
|
/*
|
|
* The implementation of this method is equivalent as:
|
|
* nsContainerFrame::BuildDisplayList()
|
|
* with the difference that we filter-out the placeholder frame when it
|
|
* should not be visible.
|
|
*/
|
|
DO_GLOBAL_REFLOW_COUNT_DSP("nsTextControlFrame");
|
|
|
|
nsCOMPtr<nsITextControlElement> txtCtrl = do_QueryInterface(GetContent());
|
|
NS_ASSERTION(txtCtrl, "Content not a text control element!");
|
|
|
|
DisplayBorderBackgroundOutline(aBuilder, aLists);
|
|
|
|
nsIFrame* kid = mFrames.FirstChild();
|
|
// Redirect all lists to the Content list so that nothing can escape, ie
|
|
// opacity creating stacking contexts that then get sorted with stacking
|
|
// contexts external to us.
|
|
nsDisplayList* content = aLists.Content();
|
|
nsDisplayListSet set(content, content, content, content, content, content);
|
|
|
|
while (kid) {
|
|
// If the frame is the placeholder frame, we should only show it if the
|
|
// placeholder has to be visible.
|
|
if (kid->GetContent() != txtCtrl->GetPlaceholderNode() ||
|
|
txtCtrl->GetPlaceholderVisibility()) {
|
|
BuildDisplayListForChild(aBuilder, kid, aDirtyRect, set, 0);
|
|
}
|
|
kid = kid->GetNextSibling();
|
|
}
|
|
}
|
|
|
|
mozilla::dom::Element*
|
|
nsTextControlFrame::GetPseudoElement(nsCSSPseudoElements::Type aType)
|
|
{
|
|
if (aType == nsCSSPseudoElements::ePseudo_mozPlaceholder) {
|
|
nsCOMPtr<nsITextControlElement> txtCtrl = do_QueryInterface(GetContent());
|
|
return txtCtrl->GetPlaceholderNode();
|
|
}
|
|
|
|
return nsContainerFrame::GetPseudoElement(aType);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsTextControlFrame::EditorInitializer::Run()
|
|
{
|
|
if (!mFrame) {
|
|
return NS_OK;
|
|
}
|
|
|
|
// Need to block script to avoid bug 669767.
|
|
nsAutoScriptBlocker scriptBlocker;
|
|
|
|
nsCOMPtr<nsIPresShell> shell =
|
|
mFrame->PresContext()->GetPresShell();
|
|
bool observes = shell->ObservesNativeAnonMutationsForPrint();
|
|
shell->ObserveNativeAnonMutationsForPrint(true);
|
|
// This can cause the frame to be destroyed (and call Revoke()).
|
|
mFrame->EnsureEditorInitialized();
|
|
shell->ObserveNativeAnonMutationsForPrint(observes);
|
|
|
|
// The frame can *still* be destroyed even though we have a scriptblocker,
|
|
// bug 682684.
|
|
if (!mFrame) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
mFrame->FinishedInitializer();
|
|
return NS_OK;
|
|
}
|