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Issue: 369376

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Use the nsIClipboardDragDropHooks mechanism to manually copy over data
from the nsITransferable to java, so that java can manualy fabricate a
Transferable instance and put it on the clipboard.

M src_moz/CurrentPageImpl.cpp

- Pass the java instance to EmbedWindow::CopySelection().

M src_moz/EmbedWindow.cpp
M src_moz/EmbedWindow.h

- Modify CopySelection to take the java object instance

- Make this implement nsIClipboardDragDropHooks.  Use the
  nsICommandManager to get informed of the copy event.

- Implement ::OnCopyOrDrag() to copy the data from the nsITransferable
  over to Java.

M src_moz/Makefile.in

- declare dependency on commandhandler


git-svn-id: svn://10.0.0.236/trunk@220060 18797224-902f-48f8-a5cc-f745e15eee43
This commit is contained in:
edburns%acm.org
2007-02-13 17:15:43 +00:00
parent 0ff3aca4a1
commit 6a43b0c2f6
4 changed files with 183 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

171
mozilla/java/webclient/src_moz/EmbedWindow.cpp
View File

@@ -28,7 +28,10 @@
#include <nsCWebBrowser.h>
#include <nsIComponentManager.h>
#include <nsICommandManager.h>
#include <nsICommandParams.h>
#include <nsIDocShellTreeItem.h>
#include <nsITransferable.h>
#include "nsIContentViewer.h"
#include "nsIContentViewerEdit.h"
#include "nsIDOMWindowInternal.h"
@@ -38,6 +41,7 @@
#include "nsIDOMNode.h"
#include "nsIWidget.h"
#include "nsReadableUtils.h"
#include "nsISupportsPrimitives.h"
#include "nsIContentViewer.h"
#include "nsIContentViewerEdit.h"
#include "nsIDocShell.h"
@@ -59,6 +63,7 @@ EmbedWindow::EmbedWindow(void)
mOwner = nsnull;
mVisibility = PR_FALSE;
mIsModal = PR_FALSE;
aCurrentPageObj = nsnull;
}
EmbedWindow::~EmbedWindow(void)
@@ -67,6 +72,7 @@ EmbedWindow::~EmbedWindow(void)
mBaseWindow = nsnull;
mWebBrowser = nsnull;
mOwner = nsnull;
aCurrentPageObj = nsnull;
}
nsresult
@@ -297,7 +303,7 @@ EmbedWindow::GetSelection(JNIEnv *env, jobject mSelection)
}
nsresult
EmbedWindow::CopySelection()
EmbedWindow::CopySelection(jobject obj)
{
nsCOMPtr<nsIDocShell> docShell = do_GetInterface(mWebBrowser);
nsCOMPtr<nsIContentViewer> contentViewer = nsnull;
@@ -318,8 +324,47 @@ EmbedWindow::CopySelection()
if (!contentViewerEdit || NS_FAILED(rv)) {
return rv;
}
nsCOMPtr<nsICommandParams> params =
do_CreateInstance(NS_COMMAND_PARAMS_CONTRACTID,&rv);
if (NS_FAILED(rv)) {
return rv;
}
nsCOMPtr<nsISupports> thisAsSupports(NS_ISUPPORTS_CAST(nsIWebBrowserChrome *,
this));
if (!thisAsSupports) {
return rv;
}
nsCOMPtr<nsICommandManager> commandManager =
do_GetInterface(mWebBrowser, &rv);
if (NS_FAILED(rv)) {
return rv;
}
rv = params->SetISupportsValue("addhook", thisAsSupports);
if (NS_FAILED(rv)) {
return rv;
}
nsCOMPtr<nsIDOMWindow> domWindow;
rv = mWebBrowser->GetContentDOMWindow(getter_AddRefs(domWindow));
if (NS_FAILED(rv) || !domWindow) {
return rv;
}
rv = commandManager->DoCommand("cmd_clipboardDragDropHook",
params, domWindow);
if (NS_FAILED(rv)) {
return rv;
}
aCurrentPageObj = obj;
rv = contentViewerEdit->CopySelection();
aCurrentPageObj = nsnull;
return rv;
}
@@ -415,6 +460,7 @@ NS_INTERFACE_MAP_BEGIN(EmbedWindow)
NS_INTERFACE_MAP_ENTRY(nsIWebBrowserChrome)
NS_INTERFACE_MAP_ENTRY(nsIWebBrowserChromeFocus)
NS_INTERFACE_MAP_ENTRY(nsIEmbeddingSiteWindow)
NS_INTERFACE_MAP_ENTRY(nsIClipboardDragDropHooks)
NS_INTERFACE_MAP_ENTRY(nsITooltipListener)
NS_INTERFACE_MAP_ENTRY(nsIInterfaceRequestor)
NS_INTERFACE_MAP_END
@@ -687,6 +733,129 @@ EmbedWindow::SetVisibility(PRBool aVisibility)
return NS_OK;
}
// nsIClipboardDragDropHooks
/* boolean allowStartDrag (in nsIDOMEvent event); */
NS_IMETHODIMP EmbedWindow::AllowStartDrag(nsIDOMEvent *event, PRBool *_retval)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
/* boolean allowDrop (in nsIDOMEvent event, in nsIDragSession session); */
NS_IMETHODIMP EmbedWindow::AllowDrop(nsIDOMEvent *event, nsIDragSession *session, PRBool *_retval)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
/* boolean onCopyOrDrag (in nsIDOMEvent aEvent, in nsITransferable trans); */
NS_IMETHODIMP EmbedWindow::OnCopyOrDrag(nsIDOMEvent *aEvent,
nsITransferable *aTransferable,
PRBool *_retval)
{
nsresult rv = NS_ERROR_FAILURE;
JNIEnv *env = (JNIEnv *) JNU_GetEnv(gVm, JNI_VERSION);
PR_ASSERT(nsnull != aCurrentPageObj);
// Taken from nsClipboard::SetupNativeDataObject() in
// widget/src/windows/nsClipboard.cpp
// Get the transferable list of data flavors
nsCOMPtr<nsISupportsArray> dfList;
aTransferable->FlavorsTransferableCanExport(getter_AddRefs(dfList));
// Walk through flavors that contain data and send them back to java
PRUint32 i;
PRUint32 cnt;
dfList->Count(&cnt);
for (i=0;i<cnt;i++) {
nsCOMPtr<nsISupports> genericFlavor;
dfList->GetElementAt ( i, getter_AddRefs(genericFlavor) );
nsCOMPtr<nsISupportsCString> currentFlavor ( do_QueryInterface(genericFlavor) );
if ( currentFlavor ) {
nsXPIDLCString flavorStr;
currentFlavor->ToString(getter_Copies(flavorStr));
UINT format = GetFormat(flavorStr);
// Do various things internal to the implementation, like
// map one flavor to another or add additional flavors based
// on what's required for the win32 impl.
if ( strcmp(flavorStr, kUnicodeMime) == 0 ) {
// if we find text/unicode, also advertise text/plain
// (which we will convert on our own in
// nsDataObj::GetText().
}
else if ( strcmp(flavorStr, kHTMLMime) == 0 ) {
// if we find text/html, also advertise win32's html flavor (which we will convert
// on our own in nsDataObj::GetText().
}
else if ( strcmp(flavorStr, kURLMime) == 0 ) {
// if we're a url, in addition to also being text, we
// need to register the "file" flavors so that the win32
// shell knows to create an internet shortcut when it
// sees one of these beasts.
}
else if ( strcmp(flavorStr, kPNGImageMime) == 0 || strcmp(flavorStr, kJPEGImageMime) == 0 ||
strcmp(flavorStr, kGIFImageMime) == 0 || strcmp(flavorStr, kNativeImageMime) == 0 ) {
}
#ifndef WINCE
else if ( strcmp(flavorStr, kFilePromiseMime) == 0 ) {
// if we're a file promise flavor, also register the
// CFSTR_PREFERREDDROPEFFECT format. The data object
// returns a value of DROPEFFECTS_MOVE to the drop
// target when it asks for the value of this format.
// This causes the file to be moved from the temporary
// location instead of being copied. The right thing to
// do here is to call SetData() on the data object and
// set the value of this format to DROPEFFECTS_MOVE on
// this particular data object. But, since all the
// other clipboard formats follow the model of setting
// data on the data object only when the drop object
// calls GetData(), I am leaving this format's value
// hard coded in the data object. We can change this if
// other consumers of this format get added to this
// codebase and they need different values.
}
#endif
}
}
return NS_OK;
}
/* boolean onPasteOrDrop (in nsIDOMEvent event, in nsITransferable trans); */
NS_IMETHODIMP EmbedWindow::OnPasteOrDrop(nsIDOMEvent *event, nsITransferable *trans, PRBool *_retval)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
UINT EmbedWindow::GetFormat(const char* aMimeStr)
{
UINT format;
if (strcmp(aMimeStr, kTextMime) == 0)
format = CF_TEXT;
else if (strcmp(aMimeStr, kUnicodeMime) == 0)
format = CF_UNICODETEXT;
#ifndef WINCE
else if (strcmp(aMimeStr, kJPEGImageMime) == 0 ||
strcmp(aMimeStr, kNativeImageMime) == 0)
format = CF_DIB;
else if (strcmp(aMimeStr, kFileMime) == 0 ||
strcmp(aMimeStr, kFilePromiseMime) == 0)
format = CF_HDROP;
#endif
else if (strcmp(aMimeStr, kURLMime) == 0 ||
strcmp(aMimeStr, kURLDataMime) == 0 ||
strcmp(aMimeStr, kURLDescriptionMime) == 0 ||
strcmp(aMimeStr, kFilePromiseURLMime) == 0)
format = CF_UNICODETEXT;
else
format = ::RegisterClipboardFormat(aMimeStr);
return format;
}
// nsITooltipListener
NS_IMETHODIMP