LCOV - code coverage report
Current view: directory - layout/forms - nsFileControlFrame.cpp (source / functions) Found Hit Coverage
Test: app.info Lines: 330 0 0.0 %
Date: 2012-06-02 Functions: 31 0 0.0 %

       1                 : /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
       2                 : /* ***** BEGIN LICENSE BLOCK *****
       3                 :  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
       4                 :  *
       5                 :  * The contents of this file are subject to the Mozilla Public License Version
       6                 :  * 1.1 (the "License"); you may not use this file except in compliance with
       7                 :  * the License. You may obtain a copy of the License at
       8                 :  * http://www.mozilla.org/MPL/
       9                 :  *
      10                 :  * Software distributed under the License is distributed on an "AS IS" basis,
      11                 :  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
      12                 :  * for the specific language governing rights and limitations under the
      13                 :  * License.
      14                 :  *
      15                 :  * The Original Code is mozilla.org code.
      16                 :  *
      17                 :  * The Initial Developer of the Original Code is
      18                 :  * Netscape Communications Corporation.
      19                 :  * Portions created by the Initial Developer are Copyright (C) 1998
      20                 :  * the Initial Developer. All Rights Reserved.
      21                 :  *
      22                 :  * Contributor(s):
      23                 :  *   Mats Palmgren <matspal@gmail.com>
      24                 :  *   Geoff Lankow <geoff@darktrojan.net>
      25                 :  *
      26                 :  * Alternatively, the contents of this file may be used under the terms of
      27                 :  * either of the GNU General Public License Version 2 or later (the "GPL"),
      28                 :  * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
      29                 :  * in which case the provisions of the GPL or the LGPL are applicable instead
      30                 :  * of those above. If you wish to allow use of your version of this file only
      31                 :  * under the terms of either the GPL or the LGPL, and not to allow others to
      32                 :  * use your version of this file under the terms of the MPL, indicate your
      33                 :  * decision by deleting the provisions above and replace them with the notice
      34                 :  * and other provisions required by the GPL or the LGPL. If you do not delete
      35                 :  * the provisions above, a recipient may use your version of this file under
      36                 :  * the terms of any one of the MPL, the GPL or the LGPL.
      37                 :  *
      38                 :  * ***** END LICENSE BLOCK ***** */
      39                 : 
      40                 : #include "nsFileControlFrame.h"
      41                 : 
      42                 : #include "nsIContent.h"
      43                 : #include "prtypes.h"
      44                 : #include "nsIAtom.h"
      45                 : #include "nsPresContext.h"
      46                 : #include "nsGkAtoms.h"
      47                 : #include "nsWidgetsCID.h"
      48                 : #include "nsIComponentManager.h"
      49                 : #include "nsHTMLParts.h"
      50                 : #include "nsIDOMHTMLInputElement.h"
      51                 : #include "nsIFormControl.h"
      52                 : #include "nsINameSpaceManager.h"
      53                 : #include "nsCOMPtr.h"
      54                 : #include "nsIDOMElement.h"
      55                 : #include "nsIDOMDocument.h"
      56                 : #include "nsIDocument.h"
      57                 : #include "nsIPresShell.h"
      58                 : #include "nsXPCOM.h"
      59                 : #include "nsISupportsPrimitives.h"
      60                 : #include "nsPIDOMWindow.h"
      61                 : #include "nsIFilePicker.h"
      62                 : #include "nsIDOMMouseEvent.h"
      63                 : #include "nsINodeInfo.h"
      64                 : #include "nsIDOMEventTarget.h"
      65                 : #include "nsILocalFile.h"
      66                 : #include "nsHTMLInputElement.h"
      67                 : #include "nsNodeInfoManager.h"
      68                 : #include "nsContentCreatorFunctions.h"
      69                 : #include "nsContentUtils.h"
      70                 : #include "nsDisplayList.h"
      71                 : #include "nsIDOMNSEvent.h"
      72                 : #include "nsEventListenerManager.h"
      73                 : #ifdef ACCESSIBILITY
      74                 : #include "nsAccessibilityService.h"
      75                 : #endif
      76                 : 
      77                 : #include "nsInterfaceHashtable.h"
      78                 : #include "nsURIHashKey.h"
      79                 : #include "nsNetCID.h"
      80                 : #include "nsWeakReference.h"
      81                 : #include "nsIVariant.h"
      82                 : #include "mozilla/Services.h"
      83                 : #include "nsDirectoryServiceDefs.h"
      84                 : #include "nsICapturePicker.h"
      85                 : #include "nsIFileURL.h"
      86                 : #include "nsDOMFile.h"
      87                 : #include "nsEventStates.h"
      88                 : #include "nsTextControlFrame.h"
      89                 : 
      90                 : #include "nsIDOMDOMStringList.h"
      91                 : #include "nsIDOMDragEvent.h"
      92                 : 
      93                 : namespace dom = mozilla::dom;
      94                 : 
      95                 : #define SYNC_TEXT 0x1
      96                 : #define SYNC_BUTTON 0x2
      97                 : 
      98                 : nsIFrame*
      99               0 : NS_NewFileControlFrame(nsIPresShell* aPresShell, nsStyleContext* aContext)
     100                 : {
     101               0 :   return new (aPresShell) nsFileControlFrame(aContext);
     102                 : }
     103                 : 
     104               0 : NS_IMPL_FRAMEARENA_HELPERS(nsFileControlFrame)
     105                 : 
     106               0 : nsFileControlFrame::nsFileControlFrame(nsStyleContext* aContext):
     107               0 :   nsBlockFrame(aContext)
     108                 : {
     109               0 :   AddStateBits(NS_BLOCK_FLOAT_MGR);
     110               0 : }
     111                 : 
     112                 : 
     113                 : NS_IMETHODIMP
     114               0 : nsFileControlFrame::Init(nsIContent* aContent,
     115                 :                          nsIFrame*   aParent,
     116                 :                          nsIFrame*   aPrevInFlow)
     117                 : {
     118               0 :   nsresult rv = nsBlockFrame::Init(aContent, aParent, aPrevInFlow);
     119               0 :   NS_ENSURE_SUCCESS(rv, rv);
     120                 : 
     121               0 :   mMouseListener = new BrowseMouseListener(this);
     122               0 :   NS_ENSURE_TRUE(mMouseListener, NS_ERROR_OUT_OF_MEMORY);
     123               0 :   mCaptureMouseListener = new CaptureMouseListener(this);
     124               0 :   NS_ENSURE_TRUE(mCaptureMouseListener, NS_ERROR_OUT_OF_MEMORY);
     125                 : 
     126               0 :   return rv;
     127                 : }
     128                 : 
     129                 : void
     130               0 : nsFileControlFrame::DestroyFrom(nsIFrame* aDestructRoot)
     131                 : {
     132               0 :   ENSURE_TRUE(mContent);
     133                 : 
     134                 :   // Remove the drag events
     135               0 :   if (mContent) {
     136               0 :     mContent->RemoveSystemEventListener(NS_LITERAL_STRING("drop"),
     137               0 :                                         mMouseListener, false);
     138               0 :     mContent->RemoveSystemEventListener(NS_LITERAL_STRING("dragover"),
     139               0 :                                         mMouseListener, false);
     140                 :   }
     141                 : 
     142                 :   // remove mMouseListener as a mouse event listener (bug 40533, bug 355931)
     143               0 :   nsContentUtils::DestroyAnonymousContent(&mCapture);
     144                 : 
     145               0 :   if (mBrowse) {
     146               0 :     mBrowse->RemoveSystemEventListener(NS_LITERAL_STRING("click"),
     147               0 :                                        mMouseListener, false);
     148                 :   }
     149               0 :   nsContentUtils::DestroyAnonymousContent(&mBrowse);
     150                 : 
     151               0 :   if (mTextContent) {
     152               0 :     mTextContent->RemoveSystemEventListener(NS_LITERAL_STRING("click"),
     153               0 :                                             mMouseListener, false);
     154                 :   }
     155               0 :   nsContentUtils::DestroyAnonymousContent(&mTextContent);
     156                 : 
     157               0 :   mCaptureMouseListener->ForgetFrame();
     158               0 :   mMouseListener->ForgetFrame();
     159               0 :   nsBlockFrame::DestroyFrom(aDestructRoot);
     160                 : }
     161                 : 
     162                 : nsresult
     163               0 : nsFileControlFrame::CreateAnonymousContent(nsTArray<ContentInfo>& aElements)
     164                 : {
     165                 :   // Get the NodeInfoManager and tag necessary to create input elements
     166               0 :   nsCOMPtr<nsIDocument> doc = mContent->GetDocument();
     167                 : 
     168               0 :   nsCOMPtr<nsINodeInfo> nodeInfo;
     169                 :   nodeInfo = doc->NodeInfoManager()->GetNodeInfo(nsGkAtoms::input, nsnull,
     170                 :                                                  kNameSpaceID_XHTML,
     171               0 :                                                  nsIDOMNode::ELEMENT_NODE);
     172                 : 
     173                 :   // Create the text content
     174               0 :   NS_NewHTMLElement(getter_AddRefs(mTextContent), nodeInfo.forget(),
     175               0 :                     dom::NOT_FROM_PARSER);
     176               0 :   if (!mTextContent)
     177               0 :     return NS_ERROR_OUT_OF_MEMORY;
     178                 : 
     179                 :   // Mark the element to be native anonymous before setting any attributes.
     180               0 :   mTextContent->SetNativeAnonymous();
     181                 : 
     182                 :   mTextContent->SetAttr(kNameSpaceID_None, nsGkAtoms::type,
     183               0 :                         NS_LITERAL_STRING("text"), false);
     184                 : 
     185                 :   nsHTMLInputElement* inputElement =
     186               0 :     nsHTMLInputElement::FromContent(mContent);
     187               0 :   NS_ASSERTION(inputElement, "Why is our content not a <input>?");
     188                 : 
     189                 :   // Initialize value when we create the content in case the value was set
     190                 :   // before we got here
     191               0 :   nsAutoString value;
     192               0 :   inputElement->GetDisplayFileName(value);
     193                 : 
     194               0 :   nsCOMPtr<nsIDOMHTMLInputElement> textControl = do_QueryInterface(mTextContent);
     195               0 :   NS_ASSERTION(textControl, "Why is the <input> we created not a <input>?");
     196               0 :   textControl->SetValue(value);
     197                 : 
     198               0 :   textControl->SetTabIndex(-1);
     199               0 :   textControl->SetReadOnly(true);
     200                 : 
     201               0 :   if (!aElements.AppendElement(mTextContent))
     202               0 :     return NS_ERROR_OUT_OF_MEMORY;
     203                 : 
     204                 :   // Register the whole frame as an event listener of drag events
     205               0 :   mContent->AddSystemEventListener(NS_LITERAL_STRING("drop"),
     206               0 :                                    mMouseListener, false);
     207               0 :   mContent->AddSystemEventListener(NS_LITERAL_STRING("dragover"),
     208               0 :                                    mMouseListener, false);
     209                 : 
     210                 :   // Register as an event listener of the textbox
     211                 :   // to open file dialog on mouse click
     212               0 :   mTextContent->AddSystemEventListener(NS_LITERAL_STRING("click"),
     213               0 :                                        mMouseListener, false);
     214                 : 
     215                 :   // Create the browse button
     216                 :   nodeInfo = doc->NodeInfoManager()->GetNodeInfo(nsGkAtoms::input, nsnull,
     217                 :                                                  kNameSpaceID_XHTML,
     218               0 :                                                  nsIDOMNode::ELEMENT_NODE);
     219               0 :   NS_NewHTMLElement(getter_AddRefs(mBrowse), nodeInfo.forget(),
     220               0 :                     dom::NOT_FROM_PARSER);
     221               0 :   if (!mBrowse)
     222               0 :     return NS_ERROR_OUT_OF_MEMORY;
     223                 : 
     224                 :   // Mark the element to be native anonymous before setting any attributes.
     225               0 :   mBrowse->SetNativeAnonymous();
     226                 : 
     227                 :   mBrowse->SetAttr(kNameSpaceID_None, nsGkAtoms::type,
     228               0 :                    NS_LITERAL_STRING("button"), false);
     229                 : 
     230                 :   // Create the capture button
     231               0 :   nsCOMPtr<nsICapturePicker> capturePicker;
     232               0 :   capturePicker = do_GetService("@mozilla.org/capturepicker;1");
     233               0 :   if (capturePicker) {
     234                 :     CaptureCallbackData data;
     235               0 :     data.picker = capturePicker;
     236               0 :     data.mode = GetCaptureMode(data);
     237                 : 
     238               0 :     if (data.mode != 0) {
     239               0 :       mCaptureMouseListener->mMode = data.mode;
     240                 :       nodeInfo = doc->NodeInfoManager()->GetNodeInfo(nsGkAtoms::input, nsnull,
     241                 :                                                      kNameSpaceID_XHTML,
     242               0 :                                                      nsIDOMNode::ELEMENT_NODE);
     243               0 :       NS_NewHTMLElement(getter_AddRefs(mCapture), nodeInfo.forget(),
     244               0 :                         dom::NOT_FROM_PARSER);
     245               0 :       if (!mCapture)
     246               0 :         return NS_ERROR_OUT_OF_MEMORY;
     247                 : 
     248                 :       // Mark the element to be native anonymous before setting any attributes.
     249               0 :       mCapture->SetNativeAnonymous();
     250                 : 
     251                 :       mCapture->SetAttr(kNameSpaceID_None, nsGkAtoms::type,
     252               0 :                         NS_LITERAL_STRING("button"), false);
     253                 : 
     254                 :       mCapture->SetAttr(kNameSpaceID_None, nsGkAtoms::value,
     255               0 :                         NS_LITERAL_STRING("capture"), false);
     256                 : 
     257               0 :       mCapture->AddSystemEventListener(NS_LITERAL_STRING("click"),
     258               0 :                                        mCaptureMouseListener, false);
     259                 :     }
     260                 :   }
     261               0 :   nsCOMPtr<nsIDOMHTMLInputElement> fileContent = do_QueryInterface(mContent);
     262               0 :   nsCOMPtr<nsIDOMHTMLInputElement> browseControl = do_QueryInterface(mBrowse);
     263               0 :   if (fileContent && browseControl) {
     264                 :     PRInt32 tabIndex;
     265               0 :     nsAutoString accessKey;
     266                 : 
     267               0 :     fileContent->GetAccessKey(accessKey);
     268               0 :     browseControl->SetAccessKey(accessKey);
     269               0 :     fileContent->GetTabIndex(&tabIndex);
     270               0 :     browseControl->SetTabIndex(tabIndex);
     271                 :   }
     272                 : 
     273               0 :   if (!aElements.AppendElement(mBrowse))
     274               0 :     return NS_ERROR_OUT_OF_MEMORY;
     275                 : 
     276               0 :   if (mCapture && !aElements.AppendElement(mCapture))
     277               0 :     return NS_ERROR_OUT_OF_MEMORY;
     278                 : 
     279                 :   // Register as an event listener of the button
     280                 :   // to open file dialog on mouse click
     281               0 :   mBrowse->AddSystemEventListener(NS_LITERAL_STRING("click"),
     282               0 :                                   mMouseListener, false);
     283                 : 
     284               0 :   SyncAttr(kNameSpaceID_None, nsGkAtoms::size,     SYNC_TEXT);
     285               0 :   SyncDisabledState();
     286                 : 
     287               0 :   return NS_OK;
     288                 : }
     289                 : 
     290                 : void
     291               0 : nsFileControlFrame::AppendAnonymousContentTo(nsBaseContentList& aElements,
     292                 :                                              PRUint32 aFilter)
     293                 : {
     294               0 :   aElements.MaybeAppendElement(mTextContent);
     295               0 :   aElements.MaybeAppendElement(mBrowse);
     296               0 :   aElements.MaybeAppendElement(mCapture);
     297               0 : }
     298                 : 
     299               0 : NS_QUERYFRAME_HEAD(nsFileControlFrame)
     300               0 :   NS_QUERYFRAME_ENTRY(nsIAnonymousContentCreator)
     301               0 :   NS_QUERYFRAME_ENTRY(nsIFormControlFrame)
     302               0 : NS_QUERYFRAME_TAIL_INHERITING(nsBlockFrame)
     303                 : 
     304                 : void 
     305               0 : nsFileControlFrame::SetFocus(bool aOn, bool aRepaint)
     306                 : {
     307               0 : }
     308                 : 
     309               0 : bool ShouldProcessMouseClick(nsIDOMEvent* aMouseEvent)
     310                 : {
     311                 :   // only allow the left button
     312               0 :   nsCOMPtr<nsIDOMMouseEvent> mouseEvent = do_QueryInterface(aMouseEvent);
     313               0 :   nsCOMPtr<nsIDOMNSEvent> domNSEvent = do_QueryInterface(aMouseEvent);
     314               0 :   NS_ENSURE_TRUE(mouseEvent && domNSEvent, false);
     315               0 :   bool defaultPrevented = false;
     316               0 :   domNSEvent->GetPreventDefault(&defaultPrevented);
     317               0 :   if (defaultPrevented) {
     318               0 :     return false;
     319                 :   }
     320                 : 
     321                 :   PRUint16 whichButton;
     322               0 :   if (NS_FAILED(mouseEvent->GetButton(&whichButton)) || whichButton != 0) {
     323               0 :     return false;
     324                 :   }
     325                 : 
     326                 :   PRInt32 clickCount;
     327               0 :   if (NS_FAILED(mouseEvent->GetDetail(&clickCount)) || clickCount > 1) {
     328               0 :     return false;
     329                 :   }
     330                 : 
     331               0 :   return true;
     332                 : }
     333                 : 
     334                 : /**
     335                 :  * This is called when our capture button is clicked
     336                 :  */
     337                 : NS_IMETHODIMP
     338               0 : nsFileControlFrame::CaptureMouseListener::HandleEvent(nsIDOMEvent* aMouseEvent)
     339                 : {
     340                 :   nsresult rv;
     341                 : 
     342               0 :   NS_ASSERTION(mFrame, "We should have been unregistered");
     343               0 :   if (!ShouldProcessMouseClick(aMouseEvent))
     344               0 :     return NS_OK;
     345                 : 
     346                 :   // Get parent nsPIDOMWindow object.
     347               0 :   nsIContent* content = mFrame->GetContent();
     348               0 :   if (!content)
     349               0 :     return NS_ERROR_FAILURE;
     350                 : 
     351               0 :   nsHTMLInputElement* inputElement = nsHTMLInputElement::FromContent(content);
     352               0 :   if (!inputElement)
     353               0 :     return NS_ERROR_FAILURE;
     354                 : 
     355               0 :   nsCOMPtr<nsIDocument> doc = content->GetDocument();
     356               0 :   if (!doc)
     357               0 :     return NS_ERROR_FAILURE;
     358                 : 
     359                 :   // Get Loc title
     360               0 :   nsXPIDLString title;
     361                 :   nsContentUtils::GetLocalizedString(nsContentUtils::eFORMS_PROPERTIES,
     362               0 :                                      "MediaUpload", title);
     363                 : 
     364               0 :   nsPIDOMWindow* win = doc->GetWindow();
     365               0 :   if (!win) {
     366               0 :     return NS_ERROR_FAILURE;
     367                 :   }
     368                 : 
     369               0 :   nsCOMPtr<nsICapturePicker> capturePicker;
     370               0 :   capturePicker = do_CreateInstance("@mozilla.org/capturepicker;1");
     371               0 :   if (!capturePicker)
     372               0 :     return NS_ERROR_FAILURE;
     373                 : 
     374               0 :   rv = capturePicker->Init(win, title, mMode);
     375               0 :   NS_ENSURE_SUCCESS(rv, rv);
     376                 : 
     377                 :   // Tell our text control frame to remember the currently focused value.
     378               0 :   nsTextControlFrame* textControlFrame = mFrame->GetTextControlFrame();
     379               0 :   textControlFrame->InitFocusedValue();
     380                 : 
     381                 :   // Show dialog
     382                 :   PRUint32 result;
     383               0 :   rv = capturePicker->Show(&result);
     384               0 :   NS_ENSURE_SUCCESS(rv, rv);
     385               0 :   if (result == nsICapturePicker::RETURN_CANCEL)
     386               0 :     return NS_OK;
     387                 : 
     388               0 :   if (!mFrame) {
     389                 :     // The frame got destroyed while the filepicker was up.  Don't do
     390                 :     // anything here.
     391                 :     // (This listener itself can't be destroyed because the event listener
     392                 :     // manager holds a strong reference to us while it fires the event.)
     393               0 :     return NS_OK;
     394                 :   }
     395                 : 
     396               0 :   nsCOMPtr<nsIDOMFile> domFile;
     397               0 :   rv = capturePicker->GetFile(getter_AddRefs(domFile));
     398               0 :   NS_ENSURE_SUCCESS(rv, rv);
     399                 : 
     400               0 :   nsCOMArray<nsIDOMFile> newFiles;
     401               0 :   if (domFile) {
     402               0 :     newFiles.AppendObject(domFile);
     403                 :   } else {
     404               0 :     return NS_ERROR_FAILURE;
     405                 :   }
     406                 : 
     407                 :   // XXXkhuey we really should have a better UI story than the tired old
     408                 :   // uneditable text box with the file name inside.
     409                 :   // Set new selected files
     410               0 :   if (newFiles.Count()) {
     411                 :     // Tell our text control frame that this update of the value is a user
     412                 :     // initiated change. Otherwise it'll think that the value is being set by
     413                 :     // a script and not fire onchange when it should.
     414               0 :     bool oldState = textControlFrame->GetFireChangeEventState();
     415               0 :     textControlFrame->SetFireChangeEventState(true);
     416               0 :     inputElement->SetFiles(newFiles, true);
     417               0 :     textControlFrame->SetFireChangeEventState(oldState);
     418                 : 
     419                 :     // May need to fire an onchange here
     420               0 :     textControlFrame->CheckFireOnChange();
     421                 :   }
     422                 : 
     423               0 :   return NS_OK;
     424                 : }
     425                 : 
     426                 : /**
     427                 :  * This is called when we receive any registered events on the control.
     428                 :  * We've only registered for drop, dragover and click events.
     429                 :  */
     430                 : NS_IMETHODIMP
     431               0 : nsFileControlFrame::BrowseMouseListener::HandleEvent(nsIDOMEvent* aEvent)
     432                 : {
     433               0 :   NS_ASSERTION(mFrame, "We should have been unregistered");
     434                 : 
     435               0 :   nsAutoString eventType;
     436               0 :   aEvent->GetType(eventType);
     437               0 :   if (eventType.EqualsLiteral("click")) {
     438               0 :     if (!ShouldProcessMouseClick(aEvent))
     439               0 :       return NS_OK;
     440                 :     
     441                 :     nsHTMLInputElement* input =
     442               0 :       nsHTMLInputElement::FromContent(mFrame->GetContent());
     443               0 :     return input ? input->FireAsyncClickHandler() : NS_OK;
     444                 :   }
     445                 : 
     446               0 :   nsCOMPtr<nsIDOMNSEvent> domNSEvent = do_QueryInterface(aEvent);
     447               0 :   NS_ENSURE_STATE(domNSEvent);
     448               0 :   bool defaultPrevented = false;
     449               0 :   domNSEvent->GetPreventDefault(&defaultPrevented);
     450               0 :   if (defaultPrevented) {
     451               0 :     return NS_OK;
     452                 :   }
     453                 :   
     454               0 :   nsCOMPtr<nsIDOMDragEvent> dragEvent = do_QueryInterface(aEvent);
     455               0 :   if (!dragEvent || !IsValidDropData(dragEvent)) {
     456               0 :     return NS_OK;
     457                 :   }
     458                 : 
     459               0 :   if (eventType.EqualsLiteral("dragover")) {
     460                 :     // Prevent default if we can accept this drag data
     461               0 :     aEvent->PreventDefault();
     462               0 :     return NS_OK;
     463                 :   }
     464                 : 
     465               0 :   if (eventType.EqualsLiteral("drop")) {
     466               0 :     aEvent->StopPropagation();
     467               0 :     aEvent->PreventDefault();
     468                 : 
     469               0 :     nsIContent* content = mFrame->GetContent();
     470               0 :     NS_ASSERTION(content, "The frame has no content???");
     471                 : 
     472               0 :     nsHTMLInputElement* inputElement = nsHTMLInputElement::FromContent(content);
     473               0 :     NS_ASSERTION(inputElement, "No input element for this file upload control frame!");
     474                 : 
     475               0 :     nsCOMPtr<nsIDOMDataTransfer> dataTransfer;
     476               0 :     dragEvent->GetDataTransfer(getter_AddRefs(dataTransfer));
     477                 : 
     478               0 :     nsCOMPtr<nsIDOMFileList> fileList;
     479               0 :     dataTransfer->GetFiles(getter_AddRefs(fileList));
     480                 : 
     481               0 :     nsTextControlFrame* textControlFrame = mFrame->GetTextControlFrame();
     482               0 :     bool oldState = textControlFrame->GetFireChangeEventState();
     483               0 :     textControlFrame->SetFireChangeEventState(true);
     484               0 :     inputElement->SetFiles(fileList, true);
     485               0 :     textControlFrame->SetFireChangeEventState(oldState);
     486               0 :     textControlFrame->CheckFireOnChange();
     487                 :   }
     488                 : 
     489               0 :   return NS_OK;
     490                 : }
     491                 : 
     492                 : /* static */ bool
     493               0 : nsFileControlFrame::BrowseMouseListener::IsValidDropData(nsIDOMDragEvent* aEvent)
     494                 : {
     495               0 :   nsCOMPtr<nsIDOMDataTransfer> dataTransfer;
     496               0 :   aEvent->GetDataTransfer(getter_AddRefs(dataTransfer));
     497               0 :   NS_ENSURE_TRUE(dataTransfer, false);
     498                 : 
     499               0 :   nsCOMPtr<nsIDOMDOMStringList> types;
     500               0 :   dataTransfer->GetTypes(getter_AddRefs(types));
     501               0 :   NS_ENSURE_TRUE(types, false);
     502                 : 
     503                 :   // We only support dropping files onto a file upload control
     504                 :   bool typeSupported;
     505               0 :   types->Contains(NS_LITERAL_STRING("Files"), &typeSupported);
     506               0 :   return typeSupported;
     507                 : }
     508                 : 
     509                 : nscoord
     510               0 : nsFileControlFrame::GetMinWidth(nsRenderingContext *aRenderingContext)
     511                 : {
     512                 :   nscoord result;
     513               0 :   DISPLAY_MIN_WIDTH(this, result);
     514                 : 
     515                 :   // Our min width is our pref width
     516               0 :   result = GetPrefWidth(aRenderingContext);
     517               0 :   return result;
     518                 : }
     519                 : 
     520                 : nsTextControlFrame*
     521               0 : nsFileControlFrame::GetTextControlFrame()
     522                 : {
     523               0 :   nsITextControlFrame* tc = do_QueryFrame(mTextContent->GetPrimaryFrame());
     524               0 :   return static_cast<nsTextControlFrame*>(tc);
     525                 : }
     526                 : 
     527                 : PRIntn
     528               0 : nsFileControlFrame::GetSkipSides() const
     529                 : {
     530               0 :   return 0;
     531                 : }
     532                 : 
     533                 : void
     534               0 : nsFileControlFrame::SyncAttr(PRInt32 aNameSpaceID, nsIAtom* aAttribute,
     535                 :                              PRInt32 aWhichControls)
     536                 : {
     537               0 :   nsAutoString value;
     538               0 :   if (mContent->GetAttr(aNameSpaceID, aAttribute, value)) {
     539               0 :     if (aWhichControls & SYNC_TEXT && mTextContent) {
     540               0 :       mTextContent->SetAttr(aNameSpaceID, aAttribute, value, true);
     541                 :     }
     542               0 :     if (aWhichControls & SYNC_BUTTON && mBrowse) {
     543               0 :       mBrowse->SetAttr(aNameSpaceID, aAttribute, value, true);
     544                 :     }
     545                 :   } else {
     546               0 :     if (aWhichControls & SYNC_TEXT && mTextContent) {
     547               0 :       mTextContent->UnsetAttr(aNameSpaceID, aAttribute, true);
     548                 :     }
     549               0 :     if (aWhichControls & SYNC_BUTTON && mBrowse) {
     550               0 :       mBrowse->UnsetAttr(aNameSpaceID, aAttribute, true);
     551                 :     }
     552                 :   }
     553               0 : }
     554                 : 
     555                 : void
     556               0 : nsFileControlFrame::SyncDisabledState()
     557                 : {
     558               0 :   nsEventStates eventStates = mContent->AsElement()->State();
     559               0 :   if (eventStates.HasState(NS_EVENT_STATE_DISABLED)) {
     560               0 :     mTextContent->SetAttr(kNameSpaceID_None, nsGkAtoms::disabled, EmptyString(),
     561               0 :                           true);
     562               0 :     mBrowse->SetAttr(kNameSpaceID_None, nsGkAtoms::disabled, EmptyString(),
     563               0 :                      true);
     564                 :   } else {
     565               0 :     mTextContent->UnsetAttr(kNameSpaceID_None, nsGkAtoms::disabled, true);
     566               0 :     mBrowse->UnsetAttr(kNameSpaceID_None, nsGkAtoms::disabled, true);
     567                 :   }
     568               0 : }
     569                 : 
     570                 : NS_IMETHODIMP
     571               0 : nsFileControlFrame::AttributeChanged(PRInt32         aNameSpaceID,
     572                 :                                      nsIAtom*        aAttribute,
     573                 :                                      PRInt32         aModType)
     574                 : {
     575               0 :   if (aNameSpaceID == kNameSpaceID_None) {
     576               0 :     if (aAttribute == nsGkAtoms::size) {
     577               0 :       SyncAttr(aNameSpaceID, aAttribute, SYNC_TEXT);
     578               0 :     } else if (aAttribute == nsGkAtoms::tabindex) {
     579               0 :       SyncAttr(aNameSpaceID, aAttribute, SYNC_BUTTON);
     580                 :     }
     581                 :   }
     582                 : 
     583               0 :   return nsBlockFrame::AttributeChanged(aNameSpaceID, aAttribute, aModType);
     584                 : }
     585                 : 
     586                 : void
     587               0 : nsFileControlFrame::ContentStatesChanged(nsEventStates aStates)
     588                 : {
     589               0 :   if (aStates.HasState(NS_EVENT_STATE_DISABLED)) {
     590               0 :     nsContentUtils::AddScriptRunner(new SyncDisabledStateEvent(this));
     591                 :   }
     592               0 : }
     593                 : 
     594                 : bool
     595               0 : nsFileControlFrame::IsLeaf() const
     596                 : {
     597               0 :   return true;
     598                 : }
     599                 : 
     600                 : #ifdef NS_DEBUG
     601                 : NS_IMETHODIMP
     602               0 : nsFileControlFrame::GetFrameName(nsAString& aResult) const
     603                 : {
     604               0 :   return MakeFrameName(NS_LITERAL_STRING("FileControl"), aResult);
     605                 : }
     606                 : #endif
     607                 : 
     608                 : nsresult
     609               0 : nsFileControlFrame::SetFormProperty(nsIAtom* aName,
     610                 :                                     const nsAString& aValue)
     611                 : {
     612               0 :   if (nsGkAtoms::value == aName) {
     613                 :     nsCOMPtr<nsIDOMHTMLInputElement> textControl =
     614               0 :       do_QueryInterface(mTextContent);
     615               0 :     NS_ASSERTION(textControl,
     616                 :                  "The text control should exist and be an input element");
     617               0 :     textControl->SetValue(aValue);
     618                 :   }
     619               0 :   return NS_OK;
     620                 : }      
     621                 : 
     622                 : nsresult
     623               0 : nsFileControlFrame::GetFormProperty(nsIAtom* aName, nsAString& aValue) const
     624                 : {
     625               0 :   aValue.Truncate();  // initialize out param
     626                 : 
     627               0 :   if (nsGkAtoms::value == aName) {
     628                 :     nsHTMLInputElement* inputElement =
     629               0 :       nsHTMLInputElement::FromContent(mContent);
     630                 : 
     631               0 :     if (inputElement) {
     632               0 :       inputElement->GetDisplayFileName(aValue);
     633                 :     }
     634                 :   }
     635               0 :   return NS_OK;
     636                 : }
     637                 : 
     638                 : NS_IMETHODIMP
     639               0 : nsFileControlFrame::BuildDisplayList(nsDisplayListBuilder*   aBuilder,
     640                 :                                      const nsRect&           aDirtyRect,
     641                 :                                      const nsDisplayListSet& aLists)
     642                 : {
     643                 :   // box-shadow
     644               0 :   if (GetStyleBorder()->mBoxShadow) {
     645                 :     nsresult rv = aLists.BorderBackground()->AppendNewToTop(new (aBuilder)
     646               0 :         nsDisplayBoxShadowOuter(aBuilder, this));
     647               0 :     NS_ENSURE_SUCCESS(rv, rv);
     648                 :   }
     649                 : 
     650                 :   // Our background is inherited to the text input, and we don't really want to
     651                 :   // paint it or out padding and borders (which we never have anyway, per
     652                 :   // styles in forms.css) -- doing it just makes us look ugly in some cases and
     653                 :   // has no effect in others.
     654               0 :   nsDisplayListCollection tempList;
     655               0 :   nsresult rv = nsBlockFrame::BuildDisplayList(aBuilder, aDirtyRect, tempList);
     656               0 :   if (NS_FAILED(rv))
     657               0 :     return rv;
     658                 : 
     659               0 :   tempList.BorderBackground()->DeleteAll();
     660                 : 
     661                 :   // Clip height only
     662               0 :   nsRect clipRect(aBuilder->ToReferenceFrame(this), GetSize());
     663               0 :   clipRect.width = GetVisualOverflowRect().XMost();
     664               0 :   nscoord radii[8] = {0, 0, 0, 0, 0, 0, 0, 0};
     665               0 :   rv = OverflowClip(aBuilder, tempList, aLists, clipRect, radii);
     666               0 :   NS_ENSURE_SUCCESS(rv, rv);
     667                 : 
     668                 :   // Disabled file controls don't pass mouse events to their children, so we
     669                 :   // put an invisible item in the display list above the children
     670                 :   // just to catch events
     671               0 :   nsEventStates eventStates = mContent->AsElement()->State();
     672               0 :   if (eventStates.HasState(NS_EVENT_STATE_DISABLED) && IsVisibleForPainting(aBuilder)) {
     673                 :     rv = aLists.Content()->AppendNewToTop(
     674               0 :         new (aBuilder) nsDisplayEventReceiver(aBuilder, this));
     675               0 :     if (NS_FAILED(rv))
     676               0 :       return rv;
     677                 :   }
     678                 : 
     679               0 :   return DisplaySelectionOverlay(aBuilder, aLists.Content());
     680                 : }
     681                 : 
     682                 : #ifdef ACCESSIBILITY
     683                 : already_AddRefed<nsAccessible>
     684               0 : nsFileControlFrame::CreateAccessible()
     685                 : {
     686                 :   // Accessible object exists just to hold onto its children, for later shutdown
     687               0 :   nsAccessibilityService* accService = nsIPresShell::AccService();
     688               0 :   if (!accService)
     689               0 :     return nsnull;
     690                 : 
     691                 :   return accService->CreateHTMLFileInputAccessible(mContent,
     692               0 :                                                    PresContext()->PresShell());
     693                 : }
     694                 : #endif
     695                 : 
     696                 : PRUint32
     697               0 : nsFileControlFrame::GetCaptureMode(const CaptureCallbackData& aData)
     698                 : {
     699               0 :   PRInt32 filters = nsHTMLInputElement::FromContent(mContent)->GetFilterFromAccept();
     700                 :   nsresult rv;
     701                 :   bool captureEnabled;
     702                 : 
     703               0 :   if (filters == nsIFilePicker::filterImages) {
     704                 :     rv = aData.picker->ModeMayBeAvailable(nsICapturePicker::MODE_STILL,
     705               0 :                                              &captureEnabled);
     706               0 :     NS_ENSURE_SUCCESS(rv, 0);
     707               0 :     if (captureEnabled) {
     708               0 :       return nsICapturePicker::MODE_STILL;
     709                 :     }
     710               0 :     return 0;
     711                 :   }
     712                 : 
     713               0 :   if (filters == nsIFilePicker::filterAudio) {
     714                 :     rv = aData.picker->ModeMayBeAvailable(nsICapturePicker::MODE_AUDIO_CLIP,
     715               0 :                                              &captureEnabled);
     716               0 :     NS_ENSURE_SUCCESS(rv, 0);
     717               0 :     if (captureEnabled) {
     718               0 :       return nsICapturePicker::MODE_AUDIO_CLIP;
     719                 :     }
     720               0 :     return 0;
     721                 :   }
     722                 : 
     723               0 :   if (filters == nsIFilePicker::filterVideo) {
     724                 :     rv = aData.picker->ModeMayBeAvailable(nsICapturePicker::MODE_VIDEO_CLIP,
     725               0 :                                              &captureEnabled);
     726               0 :     NS_ENSURE_SUCCESS(rv, 0);
     727               0 :     if (captureEnabled) {
     728               0 :       return nsICapturePicker::MODE_VIDEO_CLIP;
     729                 :     }
     730                 :     rv = aData.picker->ModeMayBeAvailable(nsICapturePicker::MODE_VIDEO_NO_SOUND_CLIP,
     731               0 :                                              &captureEnabled);
     732               0 :     NS_ENSURE_SUCCESS(rv, 0);
     733               0 :     if (captureEnabled) {
     734               0 :       return nsICapturePicker::MODE_VIDEO_NO_SOUND_CLIP;
     735                 :     }
     736               0 :     return 0;
     737                 :   }
     738                 :   
     739               0 :   return 0;
     740                 : }
     741                 : ////////////////////////////////////////////////////////////
     742                 : // Mouse listener implementation
     743                 : 
     744               0 : NS_IMPL_ISUPPORTS1(nsFileControlFrame::MouseListener,
     745                 :                    nsIDOMEventListener)

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