1 /*

     2  * Copyright (C) 2006, 2007, 2009 Apple Inc. All rights reserved.

     3  * Copyright (C) 2008 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)

     4  *

     5  * This library is free software; you can redistribute it and/or

     6  * modify it under the terms of the GNU Library General Public

     7  * License as published by the Free Software Foundation; either

     8  * version 2 of the License, or (at your option) any later version.

     9  *

    10  * This library is distributed in the hope that it will be useful,

    11  * but WITHOUT ANY WARRANTY; without even the implied warranty of

    12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

    13  * Library General Public License for more details.

    14  *

    15  * You should have received a copy of the GNU Library General Public License

    16  * along with this library; see the file COPYING.LIB.  If not, write to

    17  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,

    18  * Boston, MA 02110-1301, USA.

    19  *

    20  */

    21 

    22 #ifndef RenderTextControlSingleLine_h

    23 #define RenderTextControlSingleLine_h

    24 

    25 #include "PopupMenuClient.h"

    26 #include "RenderTextControl.h"

    27 #include "Timer.h"

    28 

    29 namespace WebCore {

    30 

    31 class InputElement;

    32 class InputFieldSpeechButtonElement;

    33 class SearchFieldCancelButtonElement;

    34 class SearchFieldResultsButtonElement;

    35 class SearchPopupMenu;

    36 class SpinButtonElement;

    37 class TextControlInnerElement;

    38 

    39 class RenderTextControlSingleLine : public RenderTextControl, private PopupMenuClient {

    40 public:

    41     RenderTextControlSingleLine(Node*, bool);

    42     virtual ~RenderTextControlSingleLine();

    43 

    44     bool placeholderIsVisible() const { return m_placeholderVisible; }

    45     bool placeholderShouldBeVisible() const;

    46 

    47     void addSearchResult();

    48     void stopSearchEventTimer();

    49 

    50     bool popupIsVisible() const { return m_searchPopupIsVisible; }

    51     void showPopup();

    52     void hidePopup();

    53 

    54     void forwardEvent(Event*);

    55 

    56     void capsLockStateMayHaveChanged();

    57 

    58     // Decoration width outside of the text field.

    59     int decorationWidthRight() const;

    60 

    61 private:

    62     int preferredDecorationWidthRight() const;

    63     virtual bool hasControlClip() const;

    64     virtual IntRect controlClipRect(int tx, int ty) const;

    65     virtual bool isTextField() const { return true; }

    66 

    67     virtual void subtreeHasChanged();

    68     virtual void paint(PaintInfo&, int tx, int ty);

    69     virtual void paintBoxDecorations(PaintInfo&, int tx, int ty);

    70     virtual void addFocusRingRects(Vector<IntRect>&, int tx, int ty);

    71     virtual void layout();

    72 

    73     virtual bool nodeAtPoint(const HitTestRequest&, HitTestResult&, int x, int y, int tx, int ty, HitTestAction);

    74 

    75     virtual void autoscroll();

    76 

    77     // Subclassed to forward to our inner div.

    78     virtual int scrollLeft() const;

    79     virtual int scrollTop() const;

    80     virtual int scrollWidth() const;

    81     virtual int scrollHeight() const;

    82     virtual void setScrollLeft(int);

    83     virtual void setScrollTop(int);

    84     virtual bool scroll(ScrollDirection, ScrollGranularity, float multiplier = 1.0f, Node** stopNode = 0);

    85 

    86     int textBlockWidth() const;

    87     virtual float getAvgCharWidth(AtomicString family);

    88     virtual int preferredContentWidth(float charWidth) const;

    89     virtual void adjustControlHeightBasedOnLineHeight(int lineHeight);

    90 

    91     void createSubtreeIfNeeded();

    92     virtual void updateFromElement();

    93     virtual void cacheSelection(int start, int end);

    94     virtual void styleDidChange(StyleDifference, const RenderStyle* oldStyle);

    95 

    96     virtual RenderStyle* textBaseStyle() const;

    97     virtual PassRefPtr<RenderStyle> createInnerTextStyle(const RenderStyle* startStyle) const;

    98     PassRefPtr<RenderStyle> createInnerBlockStyle(const RenderStyle* startStyle) const;

    99     PassRefPtr<RenderStyle> createResultsButtonStyle(const RenderStyle* startStyle) const;

   100     PassRefPtr<RenderStyle> createCancelButtonStyle(const RenderStyle* startStyle) const;

   101     PassRefPtr<RenderStyle> createInnerSpinButtonStyle() const;

   102     PassRefPtr<RenderStyle> createOuterSpinButtonStyle() const;

   103 #if ENABLE(INPUT_SPEECH)

   104     PassRefPtr<RenderStyle> createSpeechButtonStyle(const RenderStyle* startStyle) const;

   105 #endif

   106 

   107     void updateCancelButtonVisibility() const;

   108     EVisibility visibilityForCancelButton() const;

   109     const AtomicString& autosaveName() const;

   110 

   111     void startSearchEventTimer();

   112     void searchEventTimerFired(Timer<RenderTextControlSingleLine>*);

   113 

   114     // PopupMenuClient methods

   115     virtual void valueChanged(unsigned listIndex, bool fireEvents = true);

   116     virtual void selectionChanged(unsigned, bool) {}

   117     virtual void selectionCleared() {}

   118     virtual String itemText(unsigned listIndex) const;

   119     virtual String itemLabel(unsigned listIndex) const;

   120     virtual String itemToolTip(unsigned) const { return String(); }

   121     virtual String itemAccessibilityText(unsigned) const { return String(); }

   122     virtual bool itemIsEnabled(unsigned listIndex) const;

   123     virtual PopupMenuStyle itemStyle(unsigned listIndex) const;

   124     virtual PopupMenuStyle menuStyle() const;

   125     virtual int clientInsetLeft() const;

   126     virtual int clientInsetRight() const;

   127     virtual int clientPaddingLeft() const;

   128     virtual int clientPaddingRight() const;

   129     virtual int listSize() const;

   130     virtual int selectedIndex() const;

   131     virtual void popupDidHide();

   132     virtual bool itemIsSeparator(unsigned listIndex) const;

   133     virtual bool itemIsLabel(unsigned listIndex) const;

   134     virtual bool itemIsSelected(unsigned listIndex) const;

   135     virtual bool shouldPopOver() const { return false; }

   136     virtual bool valueShouldChangeOnHotTrack() const { return false; }

   137     virtual void setTextFromItem(unsigned listIndex);

   138     virtual FontSelector* fontSelector() const;

   139     virtual HostWindow* hostWindow() const;

   140     virtual PassRefPtr<Scrollbar> createScrollbar(ScrollbarClient*, ScrollbarOrientation, ScrollbarControlSize);

   141 

   142     InputElement* inputElement() const;

   143 

   144     bool m_searchPopupIsVisible;

   145     bool m_shouldDrawCapsLockIndicator;

   146 

   147     RefPtr<TextControlInnerElement> m_innerBlock;

   148     RefPtr<SearchFieldResultsButtonElement> m_resultsButton;

   149     RefPtr<SearchFieldCancelButtonElement> m_cancelButton;

   150     RefPtr<TextControlInnerElement> m_innerSpinButton;

   151     RefPtr<TextControlInnerElement> m_outerSpinButton;

   152 #if ENABLE(INPUT_SPEECH)

   153     RefPtr<InputFieldSpeechButtonElement> m_speechButton;

   154 #endif

   155 

   156     Timer<RenderTextControlSingleLine> m_searchEventTimer;

   157     RefPtr<SearchPopupMenu> m_searchPopup;

   158     Vector<String> m_recentSearches;

   159 };

   160 

   161 inline RenderTextControlSingleLine* toRenderTextControlSingleLine(RenderObject* object)

   162 { 

   163     ASSERT(!object || object->isTextField());

   164     return static_cast<RenderTextControlSingleLine*>(object);

   165 }

   166 

   167 // This will catch anyone doing an unnecessary cast.

   168 void toRenderTextControlSingleLine(const RenderTextControlSingleLine*);

   169 

   170 }

   171 

   172 #endif