gecko/widget/xpwidgets/nsBaseFilePicker.cpp
2012-08-29 14:37:43 -04:00

249 lines
7.5 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "nsCOMPtr.h"
#include "nsPIDOMWindow.h"
#include "nsIDocShell.h"
#include "nsIDocShellTreeItem.h"
#include "nsIInterfaceRequestorUtils.h"
#include "nsIBaseWindow.h"
#include "nsIWidget.h"
#include "nsIStringBundle.h"
#include "nsXPIDLString.h"
#include "nsIServiceManager.h"
#include "nsCOMArray.h"
#include "nsIFile.h"
#include "nsEnumeratorUtils.h"
#include "mozilla/Services.h"
#include "WidgetUtils.h"
#include "nsThreadUtils.h"
#include "nsBaseFilePicker.h"
using namespace mozilla::widget;
#define FILEPICKER_TITLES "chrome://global/locale/filepicker.properties"
#define FILEPICKER_FILTERS "chrome://global/content/filepicker.properties"
/**
* A runnable to dispatch from the main thread to the main thread to display
* the file picker while letting the showAsync method return right away.
*/
class AsyncShowFilePicker : public nsRunnable
{
public:
AsyncShowFilePicker(nsIFilePicker *aFilePicker,
nsIFilePickerShownCallback *aCallback) :
mFilePicker(aFilePicker),
mCallback(aCallback)
{
}
NS_IMETHOD Run()
{
NS_ASSERTION(NS_IsMainThread(),
"AsyncShowFilePicker should be on the main thread!");
// It's possible that some widget implementations require GUI operations
// to be on the main thread, so that's why we're not dispatching to another
// thread and calling back to the main after it's done.
int16_t result = nsIFilePicker::returnCancel;
nsresult rv = mFilePicker->Show(&result);
if (NS_FAILED(rv)) {
NS_ERROR("FilePicker's Show() implementation failed!");
}
if (mCallback) {
mCallback->Done(result);
}
return NS_OK;
}
private:
nsRefPtr<nsIFilePicker> mFilePicker;
nsRefPtr<nsIFilePickerShownCallback> mCallback;
};
nsBaseFilePicker::nsBaseFilePicker() :
mAddToRecentDocs(true)
{
}
nsBaseFilePicker::~nsBaseFilePicker()
{
}
NS_IMETHODIMP nsBaseFilePicker::Init(nsIDOMWindow *aParent,
const nsAString& aTitle,
int16_t aMode)
{
NS_PRECONDITION(aParent, "Null parent passed to filepicker, no file "
"picker for you!");
nsCOMPtr<nsIWidget> widget = WidgetUtils::DOMWindowToWidget(aParent);
NS_ENSURE_TRUE(widget, NS_ERROR_FAILURE);
InitNative(widget, aTitle, aMode);
return NS_OK;
}
NS_IMETHODIMP
nsBaseFilePicker::Open(nsIFilePickerShownCallback *aCallback)
{
nsCOMPtr<nsIRunnable> filePickerEvent =
new AsyncShowFilePicker(this, aCallback);
return NS_DispatchToMainThread(filePickerEvent);
}
NS_IMETHODIMP
nsBaseFilePicker::AppendFilters(int32_t aFilterMask)
{
nsCOMPtr<nsIStringBundleService> stringService =
mozilla::services::GetStringBundleService();
if (!stringService)
return NS_ERROR_FAILURE;
nsCOMPtr<nsIStringBundle> titleBundle, filterBundle;
nsresult rv = stringService->CreateBundle(FILEPICKER_TITLES,
getter_AddRefs(titleBundle));
if (NS_FAILED(rv))
return NS_ERROR_FAILURE;
rv = stringService->CreateBundle(FILEPICKER_FILTERS, getter_AddRefs(filterBundle));
if (NS_FAILED(rv))
return NS_ERROR_FAILURE;
nsXPIDLString title;
nsXPIDLString filter;
if (aFilterMask & filterAll) {
titleBundle->GetStringFromName(NS_LITERAL_STRING("allTitle").get(), getter_Copies(title));
filterBundle->GetStringFromName(NS_LITERAL_STRING("allFilter").get(), getter_Copies(filter));
AppendFilter(title,filter);
}
if (aFilterMask & filterHTML) {
titleBundle->GetStringFromName(NS_LITERAL_STRING("htmlTitle").get(), getter_Copies(title));
filterBundle->GetStringFromName(NS_LITERAL_STRING("htmlFilter").get(), getter_Copies(filter));
AppendFilter(title,filter);
}
if (aFilterMask & filterText) {
titleBundle->GetStringFromName(NS_LITERAL_STRING("textTitle").get(), getter_Copies(title));
filterBundle->GetStringFromName(NS_LITERAL_STRING("textFilter").get(), getter_Copies(filter));
AppendFilter(title,filter);
}
if (aFilterMask & filterImages) {
titleBundle->GetStringFromName(NS_LITERAL_STRING("imageTitle").get(), getter_Copies(title));
filterBundle->GetStringFromName(NS_LITERAL_STRING("imageFilter").get(), getter_Copies(filter));
AppendFilter(title,filter);
}
if (aFilterMask & filterAudio) {
titleBundle->GetStringFromName(NS_LITERAL_STRING("audioTitle").get(), getter_Copies(title));
filterBundle->GetStringFromName(NS_LITERAL_STRING("audioFilter").get(), getter_Copies(filter));
AppendFilter(title,filter);
}
if (aFilterMask & filterVideo) {
titleBundle->GetStringFromName(NS_LITERAL_STRING("videoTitle").get(), getter_Copies(title));
filterBundle->GetStringFromName(NS_LITERAL_STRING("videoFilter").get(), getter_Copies(filter));
AppendFilter(title,filter);
}
if (aFilterMask & filterXML) {
titleBundle->GetStringFromName(NS_LITERAL_STRING("xmlTitle").get(), getter_Copies(title));
filterBundle->GetStringFromName(NS_LITERAL_STRING("xmlFilter").get(), getter_Copies(filter));
AppendFilter(title,filter);
}
if (aFilterMask & filterXUL) {
titleBundle->GetStringFromName(NS_LITERAL_STRING("xulTitle").get(), getter_Copies(title));
filterBundle->GetStringFromName(NS_LITERAL_STRING("xulFilter").get(), getter_Copies(filter));
AppendFilter(title, filter);
}
if (aFilterMask & filterApps) {
titleBundle->GetStringFromName(NS_LITERAL_STRING("appsTitle").get(), getter_Copies(title));
// Pass the magic string "..apps" to the platform filepicker, which it
// should recognize and do the correct platform behavior for.
AppendFilter(title, NS_LITERAL_STRING("..apps"));
}
return NS_OK;
}
// Set the filter index
NS_IMETHODIMP nsBaseFilePicker::GetFilterIndex(int32_t *aFilterIndex)
{
*aFilterIndex = 0;
return NS_OK;
}
NS_IMETHODIMP nsBaseFilePicker::SetFilterIndex(int32_t aFilterIndex)
{
return NS_OK;
}
NS_IMETHODIMP nsBaseFilePicker::GetFiles(nsISimpleEnumerator **aFiles)
{
NS_ENSURE_ARG_POINTER(aFiles);
nsCOMArray <nsIFile> files;
nsresult rv;
// if we get into the base class, the platform
// doesn't implement GetFiles() yet.
// so we fake it.
nsCOMPtr <nsIFile> file;
rv = GetFile(getter_AddRefs(file));
NS_ENSURE_SUCCESS(rv,rv);
files.AppendObject(file);
return NS_NewArrayEnumerator(aFiles, files);
}
#ifdef BASEFILEPICKER_HAS_DISPLAYDIRECTORY
// Set the display directory
NS_IMETHODIMP nsBaseFilePicker::SetDisplayDirectory(nsIFile *aDirectory)
{
if (!aDirectory) {
mDisplayDirectory = nullptr;
return NS_OK;
}
nsCOMPtr<nsIFile> directory;
nsresult rv = aDirectory->Clone(getter_AddRefs(directory));
if (NS_FAILED(rv))
return rv;
mDisplayDirectory = do_QueryInterface(directory, &rv);
return rv;
}
// Get the display directory
NS_IMETHODIMP nsBaseFilePicker::GetDisplayDirectory(nsIFile **aDirectory)
{
*aDirectory = nullptr;
if (!mDisplayDirectory)
return NS_OK;
nsCOMPtr<nsIFile> directory;
nsresult rv = mDisplayDirectory->Clone(getter_AddRefs(directory));
if (NS_FAILED(rv))
return rv;
return CallQueryInterface(directory, aDirectory);
}
#endif
NS_IMETHODIMP
nsBaseFilePicker::GetAddToRecentDocs(bool *aFlag)
{
*aFlag = mAddToRecentDocs;
return NS_OK;
}
NS_IMETHODIMP
nsBaseFilePicker::SetAddToRecentDocs(bool aFlag)
{
mAddToRecentDocs = aFlag;
return NS_OK;
}