The Tor Browser / annotate

layout/forms/nsNumberControlFrame.h@97036ab72558 (annotated)

layout/forms/nsNumberControlFrame.h

Tue, 06 Jan 2015 21:39:09 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Tue, 06 Jan 2015 21:39:09 +0100
branch
TOR_BUG_9701
changeset 8
97036ab72558
permissions
-rw-r--r--

Conditionally force memory storage according to privacy.thirdparty.isolate;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.

michael@0 1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0 2 /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0 3 * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0 5
michael@0 6 #ifndef nsNumberControlFrame_h__
michael@0 7 #define nsNumberControlFrame_h__
michael@0 8
michael@0 9 #include "mozilla/Attributes.h"
michael@0 10 #include "nsContainerFrame.h"
michael@0 11 #include "nsIFormControlFrame.h"
michael@0 12 #include "nsITextControlFrame.h"
michael@0 13 #include "nsIAnonymousContentCreator.h"
michael@0 14 #include "nsCOMPtr.h"
michael@0 15
michael@0 16 class nsPresContext;
michael@0 17
michael@0 18 namespace mozilla {
michael@0 19 class WidgetEvent;
michael@0 20 class WidgetGUIEvent;
michael@0 21 namespace dom {
michael@0 22 class HTMLInputElement;
michael@0 23 }
michael@0 24 }
michael@0 25
michael@0 26 /**
michael@0 27 * This frame type is used for <input type=number>.
michael@0 28 */
michael@0 29 class nsNumberControlFrame MOZ_FINAL : public nsContainerFrame
michael@0 30 , public nsIAnonymousContentCreator
michael@0 31 , public nsITextControlFrame
michael@0 32 {
michael@0 33 friend nsIFrame*
michael@0 34 NS_NewNumberControlFrame(nsIPresShell* aPresShell, nsStyleContext* aContext);
michael@0 35
michael@0 36 typedef mozilla::dom::Element Element;
michael@0 37 typedef mozilla::dom::HTMLInputElement HTMLInputElement;
michael@0 38 typedef mozilla::WidgetEvent WidgetEvent;
michael@0 39 typedef mozilla::WidgetGUIEvent WidgetGUIEvent;
michael@0 40
michael@0 41 nsNumberControlFrame(nsStyleContext* aContext);
michael@0 42
michael@0 43 public:
michael@0 44 NS_DECL_QUERYFRAME_TARGET(nsNumberControlFrame)
michael@0 45 NS_DECL_QUERYFRAME
michael@0 46 NS_DECL_FRAMEARENA_HELPERS
michael@0 47
michael@0 48 virtual void DestroyFrom(nsIFrame* aDestructRoot) MOZ_OVERRIDE;
michael@0 49 virtual void ContentStatesChanged(mozilla::EventStates aStates) MOZ_OVERRIDE;
michael@0 50 virtual bool IsLeaf() const MOZ_OVERRIDE { return true; }
michael@0 51
michael@0 52 #ifdef ACCESSIBILITY
michael@0 53 virtual mozilla::a11y::AccType AccessibleType() MOZ_OVERRIDE;
michael@0 54 #endif
michael@0 55
michael@0 56 virtual nscoord GetMinWidth(nsRenderingContext* aRenderingContext) MOZ_OVERRIDE;
michael@0 57
michael@0 58 virtual nscoord GetPrefWidth(nsRenderingContext* aRenderingContext) MOZ_OVERRIDE;
michael@0 59
michael@0 60 virtual nsresult Reflow(nsPresContext* aPresContext,
michael@0 61 nsHTMLReflowMetrics& aDesiredSize,
michael@0 62 const nsHTMLReflowState& aReflowState,
michael@0 63 nsReflowStatus& aStatus) MOZ_OVERRIDE;
michael@0 64
michael@0 65 virtual nsresult AttributeChanged(int32_t aNameSpaceID,
michael@0 66 nsIAtom* aAttribute,
michael@0 67 int32_t aModType) MOZ_OVERRIDE;
michael@0 68
michael@0 69 // nsIAnonymousContentCreator
michael@0 70 virtual nsresult CreateAnonymousContent(nsTArray<ContentInfo>& aElements) MOZ_OVERRIDE;
michael@0 71 virtual void AppendAnonymousContentTo(nsBaseContentList& aElements,
michael@0 72 uint32_t aFilter) MOZ_OVERRIDE;
michael@0 73
michael@0 74 #ifdef DEBUG_FRAME_DUMP
michael@0 75 virtual nsresult GetFrameName(nsAString& aResult) const MOZ_OVERRIDE {
michael@0 76 return MakeFrameName(NS_LITERAL_STRING("NumberControl"), aResult);
michael@0 77 }
michael@0 78 #endif
michael@0 79
michael@0 80 virtual nsIAtom* GetType() const MOZ_OVERRIDE;
michael@0 81
michael@0 82 virtual bool IsFrameOfType(uint32_t aFlags) const MOZ_OVERRIDE
michael@0 83 {
michael@0 84 return nsContainerFrame::IsFrameOfType(aFlags &
michael@0 85 ~(nsIFrame::eReplaced | nsIFrame::eReplacedContainsBlock));
michael@0 86 }
michael@0 87
michael@0 88 // nsITextControlFrame
michael@0 89 NS_IMETHOD GetEditor(nsIEditor **aEditor) MOZ_OVERRIDE;
michael@0 90
michael@0 91 NS_IMETHOD SetSelectionStart(int32_t aSelectionStart) MOZ_OVERRIDE;
michael@0 92 NS_IMETHOD SetSelectionEnd(int32_t aSelectionEnd) MOZ_OVERRIDE;
michael@0 93
michael@0 94 NS_IMETHOD SetSelectionRange(int32_t aSelectionStart,
michael@0 95 int32_t aSelectionEnd,
michael@0 96 SelectionDirection aDirection = eNone) MOZ_OVERRIDE;
michael@0 97
michael@0 98 NS_IMETHOD GetSelectionRange(int32_t* aSelectionStart,
michael@0 99 int32_t* aSelectionEnd,
michael@0 100 SelectionDirection* aDirection = nullptr) MOZ_OVERRIDE;
michael@0 101
michael@0 102 NS_IMETHOD GetOwnedSelectionController(nsISelectionController** aSelCon) MOZ_OVERRIDE;
michael@0 103 virtual nsFrameSelection* GetOwnedFrameSelection() MOZ_OVERRIDE;
michael@0 104
michael@0 105 virtual nsresult GetPhonetic(nsAString& aPhonetic) MOZ_OVERRIDE;
michael@0 106
michael@0 107 /**
michael@0 108 * Ensure mEditor is initialized with the proper flags and the default value.
michael@0 109 * @throws NS_ERROR_NOT_INITIALIZED if mEditor has not been created
michael@0 110 * @throws various and sundry other things
michael@0 111 */
michael@0 112 virtual nsresult EnsureEditorInitialized() MOZ_OVERRIDE;
michael@0 113
michael@0 114 virtual nsresult ScrollSelectionIntoView() MOZ_OVERRIDE;
michael@0 115
michael@0 116 // nsIFormControlFrame
michael@0 117 virtual void SetFocus(bool aOn, bool aRepaint) MOZ_OVERRIDE;
michael@0 118 virtual nsresult SetFormProperty(nsIAtom* aName, const nsAString& aValue) MOZ_OVERRIDE;
michael@0 119
michael@0 120 /**
michael@0 121 * This method attempts to localizes aValue and then sets the result as the
michael@0 122 * value of our anonymous text control. It's called when our
michael@0 123 * HTMLInputElement's value changes, when we need to sync up the value
michael@0 124 * displayed in our anonymous text control.
michael@0 125 */
michael@0 126 void SetValueOfAnonTextControl(const nsAString& aValue);
michael@0 127
michael@0 128 /**
michael@0 129 * This method gets the string value of our anonymous text control,
michael@0 130 * attempts to normalizes (de-localizes) it, then sets the outparam aValue to
michael@0 131 * the result. It's called when user input changes the text value of our
michael@0 132 * anonymous text control so that we can sync up the internal value of our
michael@0 133 * HTMLInputElement.
michael@0 134 */
michael@0 135 void GetValueOfAnonTextControl(nsAString& aValue);
michael@0 136
michael@0 137 bool AnonTextControlIsEmpty();
michael@0 138
michael@0 139 /**
michael@0 140 * Called to notify this frame that its HTMLInputElement is currently
michael@0 141 * processing a DOM 'input' event.
michael@0 142 */
michael@0 143 void HandlingInputEvent(bool aHandlingEvent)
michael@0 144 {
michael@0 145 mHandlingInputEvent = aHandlingEvent;
michael@0 146 }
michael@0 147
michael@0 148 HTMLInputElement* GetAnonTextControl();
michael@0 149
michael@0 150 /**
michael@0 151 * If the frame is the frame for an nsNumberControlFrame's anonymous text
michael@0 152 * field, returns the nsNumberControlFrame. Else returns nullptr.
michael@0 153 */
michael@0 154 static nsNumberControlFrame* GetNumberControlFrameForTextField(nsIFrame* aFrame);
michael@0 155
michael@0 156 /**
michael@0 157 * If the frame is the frame for an nsNumberControlFrame's up or down spin
michael@0 158 * button, returns the nsNumberControlFrame. Else returns nullptr.
michael@0 159 */
michael@0 160 static nsNumberControlFrame* GetNumberControlFrameForSpinButton(nsIFrame* aFrame);
michael@0 161
michael@0 162 enum SpinButtonEnum {
michael@0 163 eSpinButtonNone,
michael@0 164 eSpinButtonUp,
michael@0 165 eSpinButtonDown
michael@0 166 };
michael@0 167
michael@0 168 /**
michael@0 169 * Returns one of the SpinButtonEnum values to depending on whether the
michael@0 170 * pointer event is over the spin-up button, the spin-down button, or
michael@0 171 * neither.
michael@0 172 */
michael@0 173 int32_t GetSpinButtonForPointerEvent(WidgetGUIEvent* aEvent) const;
michael@0 174
michael@0 175 void SpinnerStateChanged() const;
michael@0 176
michael@0 177 bool SpinnerUpButtonIsDepressed() const;
michael@0 178 bool SpinnerDownButtonIsDepressed() const;
michael@0 179
michael@0 180 bool IsFocused() const;
michael@0 181
michael@0 182 void HandleFocusEvent(WidgetEvent* aEvent);
michael@0 183
michael@0 184 /**
michael@0 185 * Our element had HTMLInputElement::Select() called on it.
michael@0 186 */
michael@0 187 nsresult HandleSelectCall();
michael@0 188
michael@0 189 virtual Element* GetPseudoElement(nsCSSPseudoElements::Type aType) MOZ_OVERRIDE;
michael@0 190
michael@0 191 bool ShouldUseNativeStyleForSpinner() const;
michael@0 192
michael@0 193 private:
michael@0 194
michael@0 195 nsITextControlFrame* GetTextFieldFrame();
michael@0 196 nsresult MakeAnonymousElement(Element** aResult,
michael@0 197 nsTArray<ContentInfo>& aElements,
michael@0 198 nsIAtom* aTagName,
michael@0 199 nsCSSPseudoElements::Type aPseudoType,
michael@0 200 nsStyleContext* aParentContext);
michael@0 201
michael@0 202 class SyncDisabledStateEvent;
michael@0 203 friend class SyncDisabledStateEvent;
michael@0 204 class SyncDisabledStateEvent : public nsRunnable
michael@0 205 {
michael@0 206 public:
michael@0 207 SyncDisabledStateEvent(nsNumberControlFrame* aFrame)
michael@0 208 : mFrame(aFrame)
michael@0 209 {}
michael@0 210
michael@0 211 NS_IMETHOD Run() MOZ_OVERRIDE
michael@0 212 {
michael@0 213 nsNumberControlFrame* frame =
michael@0 214 static_cast<nsNumberControlFrame*>(mFrame.GetFrame());
michael@0 215 NS_ENSURE_STATE(frame);
michael@0 216
michael@0 217 frame->SyncDisabledState();
michael@0 218 return NS_OK;
michael@0 219 }
michael@0 220
michael@0 221 private:
michael@0 222 nsWeakFrame mFrame;
michael@0 223 };
michael@0 224
michael@0 225 /**
michael@0 226 * Sync the disabled state of the anonymous children up with our content's.
michael@0 227 */
michael@0 228 void SyncDisabledState();
michael@0 229
michael@0 230 /**
michael@0 231 * The text field used to edit and show the number.
michael@0 232 * @see nsNumberControlFrame::CreateAnonymousContent.
michael@0 233 */
michael@0 234 nsCOMPtr<Element> mOuterWrapper;
michael@0 235 nsCOMPtr<Element> mTextField;
michael@0 236 nsCOMPtr<Element> mSpinBox;
michael@0 237 nsCOMPtr<Element> mSpinUp;
michael@0 238 nsCOMPtr<Element> mSpinDown;
michael@0 239 bool mHandlingInputEvent;
michael@0 240 };
michael@0 241
michael@0 242 #endif // nsNumberControlFrame_h__

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