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38867c6db7
HasNativeClipboardDataMatchingFlavors() also does the same thing which is useful for debugging. Differential Revision: https://phabricator.services.mozilla.com/D209799
1468 lines
51 KiB
C++
1468 lines
51 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim:expandtab:shiftwidth=2:tabstop=2:
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*/
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "mozilla/ArrayUtils.h"
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#include "nsArrayUtils.h"
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#include "nsClipboard.h"
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#if defined(MOZ_X11)
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# include "nsClipboardX11.h"
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#endif
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#if defined(MOZ_WAYLAND)
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# include "nsClipboardWayland.h"
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# include "nsWaylandDisplay.h"
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#endif
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#include "nsGtkUtils.h"
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#include "nsIURI.h"
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#include "nsIFile.h"
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#include "nsNetUtil.h"
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#include "nsContentUtils.h"
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#include "HeadlessClipboard.h"
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#include "nsSupportsPrimitives.h"
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#include "nsString.h"
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#include "nsReadableUtils.h"
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#include "nsPrimitiveHelpers.h"
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#include "nsImageToPixbuf.h"
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#include "nsStringStream.h"
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#include "nsIFileURL.h"
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#include "nsIObserverService.h"
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#include "mozilla/Services.h"
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#include "mozilla/RefPtr.h"
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#include "mozilla/GRefPtr.h"
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#include "mozilla/SchedulerGroup.h"
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#include "mozilla/StaticPrefs_widget.h"
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#include "mozilla/TimeStamp.h"
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#include "GRefPtr.h"
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#include "WidgetUtilsGtk.h"
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#include "imgIContainer.h"
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#include <gtk/gtk.h>
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#if defined(MOZ_X11)
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# include <gtk/gtkx.h>
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#endif
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#include "mozilla/Encoding.h"
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using namespace mozilla;
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// Idle timeout for receiving selection and property notify events (microsec)
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// Right now it's set to 1 sec.
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const int kClipboardTimeout = 1000000;
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// Defines how many event loop iterations will be done without sleep.
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// We ususally get data in first 2-3 iterations unless some large object
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// (an image for instance) is transferred through clipboard.
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const int kClipboardFastIterationNum = 3;
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// We add this prefix to HTML markup, so that GetHTMLCharset can correctly
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// detect the HTML as UTF-8 encoded.
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static const char kHTMLMarkupPrefix[] =
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R"(<meta http-equiv="content-type" content="text/html; charset=utf-8">)";
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static const char kURIListMime[] = "text/uri-list";
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ClipboardTargets nsRetrievalContext::sClipboardTargets;
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ClipboardTargets nsRetrievalContext::sPrimaryTargets;
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// Callback when someone asks us for the data
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static void clipboard_get_cb(GtkClipboard* aGtkClipboard,
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GtkSelectionData* aSelectionData, guint info,
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gpointer user_data);
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// Callback when someone asks us to clear a clipboard
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static void clipboard_clear_cb(GtkClipboard* aGtkClipboard, gpointer user_data);
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// Callback when owner of clipboard data is changed
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static void clipboard_owner_change_cb(GtkClipboard* aGtkClipboard,
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GdkEventOwnerChange* aEvent,
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gpointer aUserData);
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static bool GetHTMLCharset(Span<const char> aData, nsCString& str);
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static void SetTransferableData(nsITransferable* aTransferable,
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const nsACString& aFlavor,
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const char* aClipboardData,
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uint32_t aClipboardDataLength) {
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MOZ_CLIPBOARD_LOG("SetTransferableData MIME %s\n",
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PromiseFlatCString(aFlavor).get());
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nsCOMPtr<nsISupports> wrapper;
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nsPrimitiveHelpers::CreatePrimitiveForData(
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aFlavor, aClipboardData, aClipboardDataLength, getter_AddRefs(wrapper));
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aTransferable->SetTransferData(PromiseFlatCString(aFlavor).get(), wrapper);
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}
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ClipboardTargets ClipboardTargets::Clone() {
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ClipboardTargets ret;
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ret.mCount = mCount;
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if (mCount) {
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ret.mTargets.reset(
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reinterpret_cast<GdkAtom*>(g_malloc(sizeof(GdkAtom) * mCount)));
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memcpy(ret.mTargets.get(), mTargets.get(), sizeof(GdkAtom) * mCount);
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}
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return ret;
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}
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void ClipboardTargets::Set(ClipboardTargets aTargets) {
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mCount = aTargets.mCount;
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mTargets = std::move(aTargets.mTargets);
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}
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void ClipboardData::SetData(Span<const uint8_t> aData) {
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mData = nullptr;
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mLength = aData.Length();
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if (mLength) {
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mData.reset(reinterpret_cast<char*>(g_malloc(sizeof(char) * mLength)));
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memcpy(mData.get(), aData.data(), sizeof(char) * mLength);
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}
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}
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void ClipboardData::SetText(Span<const char> aData) {
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mData = nullptr;
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mLength = aData.Length();
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if (mLength) {
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mData.reset(
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reinterpret_cast<char*>(g_malloc(sizeof(char) * (mLength + 1))));
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memcpy(mData.get(), aData.data(), sizeof(char) * mLength);
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mData.get()[mLength] = '\0';
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}
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}
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void ClipboardData::SetTargets(ClipboardTargets aTargets) {
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mLength = aTargets.mCount;
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mData.reset(reinterpret_cast<char*>(aTargets.mTargets.release()));
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}
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ClipboardTargets ClipboardData::ExtractTargets() {
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GUniquePtr<GdkAtom> targets(reinterpret_cast<GdkAtom*>(mData.release()));
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uint32_t length = std::exchange(mLength, 0);
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return ClipboardTargets{std::move(targets), length};
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}
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GdkAtom GetSelectionAtom(int32_t aWhichClipboard) {
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if (aWhichClipboard == nsIClipboard::kGlobalClipboard)
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return GDK_SELECTION_CLIPBOARD;
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return GDK_SELECTION_PRIMARY;
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}
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int GetGeckoClipboardType(GtkClipboard* aGtkClipboard) {
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if (aGtkClipboard == gtk_clipboard_get(GDK_SELECTION_PRIMARY))
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return nsClipboard::kSelectionClipboard;
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else if (aGtkClipboard == gtk_clipboard_get(GDK_SELECTION_CLIPBOARD))
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return nsClipboard::kGlobalClipboard;
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return -1; // THAT AIN'T NO CLIPBOARD I EVER HEARD OF
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}
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void nsRetrievalContext::ClearCachedTargetsClipboard(GtkClipboard* aClipboard,
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GdkEvent* aEvent,
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gpointer data) {
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MOZ_CLIPBOARD_LOG("nsRetrievalContext::ClearCachedTargetsClipboard()");
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sClipboardTargets.Clear();
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}
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void nsRetrievalContext::ClearCachedTargetsPrimary(GtkClipboard* aClipboard,
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GdkEvent* aEvent,
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gpointer data) {
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MOZ_CLIPBOARD_LOG("nsRetrievalContext::ClearCachedTargetsPrimary()");
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sPrimaryTargets.Clear();
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}
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ClipboardTargets nsRetrievalContext::GetTargets(int32_t aWhichClipboard) {
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MOZ_CLIPBOARD_LOG("nsRetrievalContext::GetTargets(%s)\n",
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aWhichClipboard == nsClipboard::kSelectionClipboard
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? "primary"
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: "clipboard");
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ClipboardTargets& storedTargets =
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(aWhichClipboard == nsClipboard::kSelectionClipboard) ? sPrimaryTargets
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: sClipboardTargets;
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if (!storedTargets) {
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MOZ_CLIPBOARD_LOG(" getting targets from system");
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storedTargets.Set(GetTargetsImpl(aWhichClipboard));
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} else {
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MOZ_CLIPBOARD_LOG(" using cached targets");
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}
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return storedTargets.Clone();
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}
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nsRetrievalContext::~nsRetrievalContext() {
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sClipboardTargets.Clear();
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sPrimaryTargets.Clear();
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}
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nsClipboard::nsClipboard()
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: nsBaseClipboard(mozilla::dom::ClipboardCapabilities(
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#ifdef MOZ_WAYLAND
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widget::GdkIsWaylandDisplay()
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? widget::WaylandDisplayGet()->IsPrimarySelectionEnabled()
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: true,
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#else
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true, /* supportsSelectionClipboard */
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#endif
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false /* supportsFindClipboard */,
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false /* supportsSelectionCache */)) {
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g_signal_connect(gtk_clipboard_get(GDK_SELECTION_CLIPBOARD), "owner-change",
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G_CALLBACK(clipboard_owner_change_cb), this);
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g_signal_connect(gtk_clipboard_get(GDK_SELECTION_PRIMARY), "owner-change",
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G_CALLBACK(clipboard_owner_change_cb), this);
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}
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nsClipboard::~nsClipboard() {
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g_signal_handlers_disconnect_by_func(
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gtk_clipboard_get(GDK_SELECTION_CLIPBOARD),
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FuncToGpointer(clipboard_owner_change_cb), this);
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g_signal_handlers_disconnect_by_func(
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gtk_clipboard_get(GDK_SELECTION_PRIMARY),
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FuncToGpointer(clipboard_owner_change_cb), this);
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}
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NS_IMPL_ISUPPORTS_INHERITED(nsClipboard, nsBaseClipboard, nsIObserver)
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nsresult nsClipboard::Init(void) {
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#if defined(MOZ_X11)
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if (widget::GdkIsX11Display()) {
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mContext = new nsRetrievalContextX11();
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}
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#endif
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#if defined(MOZ_WAYLAND)
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if (widget::GdkIsWaylandDisplay()) {
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mContext = new nsRetrievalContextWayland();
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}
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#endif
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nsCOMPtr<nsIObserverService> os = mozilla::services::GetObserverService();
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if (os) {
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os->AddObserver(this, "xpcom-shutdown", false);
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}
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return NS_OK;
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}
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NS_IMETHODIMP
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nsClipboard::Observe(nsISupports* aSubject, const char* aTopic,
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const char16_t* aData) {
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// Save global clipboard content to CLIPBOARD_MANAGER.
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// gtk_clipboard_store() can run an event loop, so call from a dedicated
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// runnable.
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return SchedulerGroup::Dispatch(
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NS_NewRunnableFunction("gtk_clipboard_store()", []() {
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MOZ_CLIPBOARD_LOG("nsClipboard storing clipboard content\n");
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gtk_clipboard_store(gtk_clipboard_get(GDK_SELECTION_CLIPBOARD));
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}));
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}
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NS_IMETHODIMP
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nsClipboard::SetNativeClipboardData(nsITransferable* aTransferable,
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int32_t aWhichClipboard) {
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MOZ_DIAGNOSTIC_ASSERT(aTransferable);
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MOZ_DIAGNOSTIC_ASSERT(
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nsIClipboard::IsClipboardTypeSupported(aWhichClipboard));
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// See if we can short cut
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if ((aWhichClipboard == kGlobalClipboard &&
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aTransferable == mGlobalTransferable.get()) ||
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(aWhichClipboard == kSelectionClipboard &&
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aTransferable == mSelectionTransferable.get())) {
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return NS_OK;
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}
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MOZ_CLIPBOARD_LOG(
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"nsClipboard::SetNativeClipboardData (%s)\n",
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aWhichClipboard == kSelectionClipboard ? "primary" : "clipboard");
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// List of suported targets
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GtkTargetList* list = gtk_target_list_new(nullptr, 0);
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// Get the types of supported flavors
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nsTArray<nsCString> flavors;
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nsresult rv = aTransferable->FlavorsTransferableCanExport(flavors);
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if (NS_FAILED(rv)) {
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MOZ_CLIPBOARD_LOG(" FlavorsTransferableCanExport failed!\n");
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// Fall through. |gtkTargets| will be null below.
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}
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// Add all the flavors to this widget's supported type.
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bool imagesAdded = false;
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for (uint32_t i = 0; i < flavors.Length(); i++) {
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nsCString& flavorStr = flavors[i];
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MOZ_CLIPBOARD_LOG(" processing target %s\n", flavorStr.get());
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// Special case text/plain since we can handle all of the string types.
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if (flavorStr.EqualsLiteral(kTextMime)) {
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MOZ_CLIPBOARD_LOG(" adding TEXT targets\n");
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gtk_target_list_add_text_targets(list, 0);
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continue;
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}
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if (nsContentUtils::IsFlavorImage(flavorStr)) {
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// Don't bother adding image targets twice
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if (!imagesAdded) {
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// accept any writable image type
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MOZ_CLIPBOARD_LOG(" adding IMAGE targets\n");
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gtk_target_list_add_image_targets(list, 0, TRUE);
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imagesAdded = true;
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}
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continue;
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}
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if (flavorStr.EqualsLiteral(kFileMime)) {
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MOZ_CLIPBOARD_LOG(" adding text/uri-list target\n");
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GdkAtom atom = gdk_atom_intern(kURIListMime, FALSE);
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gtk_target_list_add(list, atom, 0, 0);
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continue;
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}
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// Add this to our list of valid targets
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MOZ_CLIPBOARD_LOG(" adding OTHER target %s\n", flavorStr.get());
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GdkAtom atom = gdk_atom_intern(flavorStr.get(), FALSE);
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gtk_target_list_add(list, atom, 0, 0);
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}
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// Get GTK clipboard (CLIPBOARD or PRIMARY)
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GtkClipboard* gtkClipboard =
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gtk_clipboard_get(GetSelectionAtom(aWhichClipboard));
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gint numTargets = 0;
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GtkTargetEntry* gtkTargets =
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gtk_target_table_new_from_list(list, &numTargets);
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if (!gtkTargets || numTargets == 0) {
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MOZ_CLIPBOARD_LOG(
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" gtk_target_table_new_from_list() failed or empty list of "
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"targets!\n");
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// Clear references to the any old data and let GTK know that it is no
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// longer available.
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EmptyNativeClipboardData(aWhichClipboard);
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return NS_ERROR_FAILURE;
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}
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ClearCachedTargets(aWhichClipboard);
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// Set getcallback and request to store data after an application exit
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if (gtk_clipboard_set_with_data(gtkClipboard, gtkTargets, numTargets,
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clipboard_get_cb, clipboard_clear_cb, this)) {
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// We managed to set-up the clipboard so update internal state
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// We have to set it now because gtk_clipboard_set_with_data() calls
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// clipboard_clear_cb() which reset our internal state
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if (aWhichClipboard == kSelectionClipboard) {
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mSelectionSequenceNumber++;
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mSelectionTransferable = aTransferable;
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} else {
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mGlobalSequenceNumber++;
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mGlobalTransferable = aTransferable;
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gtk_clipboard_set_can_store(gtkClipboard, gtkTargets, numTargets);
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}
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rv = NS_OK;
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} else {
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MOZ_CLIPBOARD_LOG(" gtk_clipboard_set_with_data() failed!\n");
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EmptyNativeClipboardData(aWhichClipboard);
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rv = NS_ERROR_FAILURE;
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}
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gtk_target_table_free(gtkTargets, numTargets);
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gtk_target_list_unref(list);
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return rv;
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}
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mozilla::Result<int32_t, nsresult>
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nsClipboard::GetNativeClipboardSequenceNumber(int32_t aWhichClipboard) {
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MOZ_DIAGNOSTIC_ASSERT(
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nsIClipboard::IsClipboardTypeSupported(aWhichClipboard));
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return aWhichClipboard == kSelectionClipboard ? mSelectionSequenceNumber
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: mGlobalSequenceNumber;
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}
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static bool IsMIMEAtFlavourList(const nsTArray<nsCString>& aFlavourList,
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const char* aMime) {
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for (const auto& flavorStr : aFlavourList) {
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if (flavorStr.Equals(aMime)) {
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return true;
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}
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}
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return false;
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}
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// When clipboard contains only images, X11/Gtk tries to convert them
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// to text when we request text instead of just fail to provide the data.
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// So if clipboard contains images only remove text MIME offer.
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bool nsClipboard::FilterImportedFlavors(int32_t aWhichClipboard,
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nsTArray<nsCString>& aFlavors) {
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MOZ_CLIPBOARD_LOG("nsClipboard::FilterImportedFlavors");
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auto targets = mContext->GetTargets(aWhichClipboard);
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if (!targets) {
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MOZ_CLIPBOARD_LOG(" X11: no targes at clipboard (null), quit.\n");
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return true;
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}
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for (const auto& atom : targets.AsSpan()) {
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GUniquePtr<gchar> atom_name(gdk_atom_name(atom));
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if (!atom_name) {
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continue;
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}
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// Filter out system MIME types.
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if (strcmp(atom_name.get(), "TARGETS") == 0 ||
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strcmp(atom_name.get(), "TIMESTAMP") == 0 ||
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strcmp(atom_name.get(), "SAVE_TARGETS") == 0 ||
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strcmp(atom_name.get(), "MULTIPLE") == 0) {
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continue;
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}
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// Filter out types which can't be converted to text.
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if (strncmp(atom_name.get(), "image/", 6) == 0 ||
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strncmp(atom_name.get(), "application/", 12) == 0 ||
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strncmp(atom_name.get(), "audio/", 6) == 0 ||
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strncmp(atom_name.get(), "video/", 6) == 0) {
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continue;
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}
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// We have some other MIME type on clipboard which can be hopefully
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// converted to text without any problem.
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MOZ_CLIPBOARD_LOG(
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" X11: text types in clipboard, no need to filter them.\n");
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return true;
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}
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// So make sure we offer only types we have at clipboard.
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nsTArray<nsCString> clipboardFlavors;
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for (const auto& atom : targets.AsSpan()) {
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GUniquePtr<gchar> atom_name(gdk_atom_name(atom));
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if (!atom_name) {
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continue;
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}
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if (IsMIMEAtFlavourList(aFlavors, atom_name.get())) {
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clipboardFlavors.AppendElement(nsCString(atom_name.get()));
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}
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}
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aFlavors.SwapElements(clipboardFlavors);
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#ifdef MOZ_LOGGING
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MOZ_CLIPBOARD_LOG(" X11: Flavors which match clipboard content:\n");
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for (uint32_t i = 0; i < aFlavors.Length(); i++) {
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MOZ_CLIPBOARD_LOG(" %s\n", aFlavors[i].get());
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}
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#endif
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return true;
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}
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static nsresult GetTransferableFlavors(nsITransferable* aTransferable,
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nsTArray<nsCString>& aFlavors) {
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if (!aTransferable) {
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return NS_ERROR_FAILURE;
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}
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// Get a list of flavors this transferable can import
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nsresult rv = aTransferable->FlavorsTransferableCanImport(aFlavors);
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if (NS_FAILED(rv)) {
|
|
MOZ_CLIPBOARD_LOG(" FlavorsTransferableCanImport falied!\n");
|
|
return rv;
|
|
}
|
|
#ifdef MOZ_LOGGING
|
|
MOZ_CLIPBOARD_LOG(" Flavors which can be imported:");
|
|
for (const auto& flavor : aFlavors) {
|
|
MOZ_CLIPBOARD_LOG(" %s", flavor.get());
|
|
}
|
|
#endif
|
|
return NS_OK;
|
|
}
|
|
|
|
static bool TransferableSetFile(nsITransferable* aTransferable,
|
|
const nsACString& aURIList) {
|
|
nsresult rv;
|
|
nsTArray<nsCString> uris = mozilla::widget::ParseTextURIList(aURIList);
|
|
if (!uris.IsEmpty()) {
|
|
nsCOMPtr<nsIURI> fileURI;
|
|
NS_NewURI(getter_AddRefs(fileURI), uris[0]);
|
|
if (nsCOMPtr<nsIFileURL> fileURL = do_QueryInterface(fileURI, &rv)) {
|
|
nsCOMPtr<nsIFile> file;
|
|
rv = fileURL->GetFile(getter_AddRefs(file));
|
|
if (NS_SUCCEEDED(rv)) {
|
|
aTransferable->SetTransferData(kFileMime, file);
|
|
MOZ_CLIPBOARD_LOG(" successfully set file to clipboard\n");
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
static bool TransferableSetHTML(nsITransferable* aTransferable,
|
|
Span<const char> aData) {
|
|
nsLiteralCString mimeType(kHTMLMime);
|
|
|
|
// Convert text/html into our text format
|
|
nsAutoCString charset;
|
|
if (!GetHTMLCharset(aData, charset)) {
|
|
// Fall back to utf-8 in case html/data is missing kHTMLMarkupPrefix.
|
|
MOZ_CLIPBOARD_LOG(
|
|
"Failed to get html/text encoding, fall back to utf-8.\n");
|
|
charset.AssignLiteral("utf-8");
|
|
}
|
|
|
|
MOZ_CLIPBOARD_LOG("TransferableSetHTML: HTML detected charset %s",
|
|
charset.get());
|
|
// app which use "text/html" to copy&paste
|
|
// get the decoder
|
|
auto encoding = Encoding::ForLabelNoReplacement(charset);
|
|
if (!encoding) {
|
|
MOZ_CLIPBOARD_LOG(
|
|
"TransferableSetHTML: get unicode decoder error (charset: %s)",
|
|
charset.get());
|
|
return false;
|
|
}
|
|
|
|
// According to spec html UTF-16BE/LE should be switched to UTF-8
|
|
// https://html.spec.whatwg.org/#determining-the-character-encoding:utf-16-encoding-2
|
|
if (encoding == UTF_16LE_ENCODING || encoding == UTF_16BE_ENCODING) {
|
|
encoding = UTF_8_ENCODING;
|
|
}
|
|
|
|
// Remove kHTMLMarkupPrefix again, it won't necessarily cause any
|
|
// issues, but might confuse other users.
|
|
const size_t prefixLen = ArrayLength(kHTMLMarkupPrefix) - 1;
|
|
if (aData.Length() >= prefixLen && nsDependentCSubstring(aData.To(prefixLen))
|
|
.EqualsLiteral(kHTMLMarkupPrefix)) {
|
|
aData = aData.From(prefixLen);
|
|
}
|
|
|
|
nsAutoString unicodeData;
|
|
auto [rv, enc] = encoding->Decode(AsBytes(aData), unicodeData);
|
|
#if MOZ_LOGGING
|
|
if (enc != UTF_8_ENCODING && MOZ_CLIPBOARD_LOG_ENABLED()) {
|
|
nsCString decoderName;
|
|
enc->Name(decoderName);
|
|
MOZ_CLIPBOARD_LOG("TransferableSetHTML: expected UTF-8 decoder but got %s",
|
|
decoderName.get());
|
|
}
|
|
#endif
|
|
if (NS_FAILED(rv)) {
|
|
MOZ_CLIPBOARD_LOG("TransferableSetHTML: failed to decode HTML");
|
|
return false;
|
|
}
|
|
SetTransferableData(aTransferable, mimeType,
|
|
(const char*)unicodeData.BeginReading(),
|
|
unicodeData.Length() * sizeof(char16_t));
|
|
return true;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsClipboard::GetNativeClipboardData(nsITransferable* aTransferable,
|
|
int32_t aWhichClipboard) {
|
|
MOZ_DIAGNOSTIC_ASSERT(aTransferable);
|
|
MOZ_DIAGNOSTIC_ASSERT(
|
|
nsIClipboard::IsClipboardTypeSupported(aWhichClipboard));
|
|
|
|
MOZ_CLIPBOARD_LOG(
|
|
"nsClipboard::GetNativeClipboardData (%s)\n",
|
|
aWhichClipboard == kSelectionClipboard ? "primary" : "clipboard");
|
|
|
|
// TODO: Ensure we don't re-enter here.
|
|
if (!mContext) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
nsTArray<nsCString> flavors;
|
|
nsresult rv = GetTransferableFlavors(aTransferable, flavors);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
// Filter out MIME types on X11 to prevent unwanted conversions,
|
|
// see Bug 1611407
|
|
if (widget::GdkIsX11Display() &&
|
|
!FilterImportedFlavors(aWhichClipboard, flavors)) {
|
|
MOZ_CLIPBOARD_LOG(" Missing suitable clipboard data, quit.");
|
|
return NS_OK;
|
|
}
|
|
|
|
for (uint32_t i = 0; i < flavors.Length(); i++) {
|
|
nsCString& flavorStr = flavors[i];
|
|
|
|
if (flavorStr.EqualsLiteral(kJPEGImageMime) ||
|
|
flavorStr.EqualsLiteral(kJPGImageMime) ||
|
|
flavorStr.EqualsLiteral(kPNGImageMime) ||
|
|
flavorStr.EqualsLiteral(kGIFImageMime)) {
|
|
// Emulate support for image/jpg
|
|
if (flavorStr.EqualsLiteral(kJPGImageMime)) {
|
|
flavorStr.Assign(kJPEGImageMime);
|
|
}
|
|
|
|
MOZ_CLIPBOARD_LOG(" Getting image %s MIME clipboard data\n",
|
|
flavorStr.get());
|
|
|
|
auto clipboardData =
|
|
mContext->GetClipboardData(flavorStr.get(), aWhichClipboard);
|
|
if (!clipboardData) {
|
|
MOZ_CLIPBOARD_LOG(" %s type is missing\n", flavorStr.get());
|
|
continue;
|
|
}
|
|
|
|
nsCOMPtr<nsIInputStream> byteStream;
|
|
NS_NewByteInputStream(getter_AddRefs(byteStream), clipboardData.AsSpan(),
|
|
NS_ASSIGNMENT_COPY);
|
|
aTransferable->SetTransferData(flavorStr.get(), byteStream);
|
|
MOZ_CLIPBOARD_LOG(" got %s MIME data\n", flavorStr.get());
|
|
return NS_OK;
|
|
}
|
|
|
|
// Special case text/plain since we can convert any
|
|
// string into text/plain
|
|
if (flavorStr.EqualsLiteral(kTextMime)) {
|
|
MOZ_CLIPBOARD_LOG(" Getting text %s MIME clipboard data\n",
|
|
flavorStr.get());
|
|
|
|
auto clipboardData = mContext->GetClipboardText(aWhichClipboard);
|
|
if (!clipboardData) {
|
|
MOZ_CLIPBOARD_LOG(" failed to get text data\n");
|
|
// If the type was text/plain and we couldn't get
|
|
// text off the clipboard, run the next loop
|
|
// iteration.
|
|
continue;
|
|
}
|
|
|
|
// Convert utf-8 into our text format.
|
|
NS_ConvertUTF8toUTF16 ucs2string(clipboardData.get());
|
|
SetTransferableData(aTransferable, flavorStr,
|
|
(const char*)ucs2string.BeginReading(),
|
|
ucs2string.Length() * 2);
|
|
|
|
MOZ_CLIPBOARD_LOG(" got text data, length %zd\n", ucs2string.Length());
|
|
return NS_OK;
|
|
}
|
|
|
|
if (flavorStr.EqualsLiteral(kFileMime)) {
|
|
MOZ_CLIPBOARD_LOG(" Getting %s file clipboard data\n",
|
|
flavorStr.get());
|
|
|
|
auto clipboardData =
|
|
mContext->GetClipboardData(kURIListMime, aWhichClipboard);
|
|
if (!clipboardData) {
|
|
MOZ_CLIPBOARD_LOG(" text/uri-list type is missing\n");
|
|
continue;
|
|
}
|
|
|
|
nsDependentCSubstring fileName(clipboardData.AsSpan());
|
|
if (!TransferableSetFile(aTransferable, fileName)) {
|
|
continue;
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
MOZ_CLIPBOARD_LOG(" Getting %s MIME clipboard data\n", flavorStr.get());
|
|
|
|
auto clipboardData =
|
|
mContext->GetClipboardData(flavorStr.get(), aWhichClipboard);
|
|
|
|
#ifdef MOZ_LOGGING
|
|
if (!clipboardData) {
|
|
MOZ_CLIPBOARD_LOG(" %s type is missing\n", flavorStr.get());
|
|
}
|
|
#endif
|
|
|
|
if (clipboardData) {
|
|
MOZ_CLIPBOARD_LOG(" got %s mime type data.\n", flavorStr.get());
|
|
|
|
// Special case text/html since we can convert into UCS2
|
|
if (flavorStr.EqualsLiteral(kHTMLMime)) {
|
|
if (!TransferableSetHTML(aTransferable, clipboardData.AsSpan())) {
|
|
continue;
|
|
}
|
|
} else {
|
|
auto span = clipboardData.AsSpan();
|
|
SetTransferableData(aTransferable, flavorStr, span.data(),
|
|
span.Length());
|
|
}
|
|
return NS_OK;
|
|
}
|
|
}
|
|
|
|
MOZ_CLIPBOARD_LOG(" failed to get clipboard content.\n");
|
|
return NS_OK;
|
|
}
|
|
|
|
enum DataType {
|
|
DATATYPE_IMAGE,
|
|
DATATYPE_FILE,
|
|
DATATYPE_HTML,
|
|
DATATYPE_RAW,
|
|
};
|
|
|
|
struct DataCallbackHandler {
|
|
RefPtr<nsITransferable> mTransferable;
|
|
nsBaseClipboard::GetDataCallback mDataCallback;
|
|
nsCString mMimeType;
|
|
DataType mDataType;
|
|
|
|
explicit DataCallbackHandler(RefPtr<nsITransferable> aTransferable,
|
|
nsBaseClipboard::GetDataCallback&& aDataCallback,
|
|
const char* aMimeType,
|
|
DataType aDataType = DATATYPE_RAW)
|
|
: mTransferable(std::move(aTransferable)),
|
|
mDataCallback(std::move(aDataCallback)),
|
|
mMimeType(aMimeType),
|
|
mDataType(aDataType) {
|
|
MOZ_COUNT_CTOR(DataCallbackHandler);
|
|
MOZ_CLIPBOARD_LOG("DataCallbackHandler created [%p] MIME %s type %d", this,
|
|
mMimeType.get(), mDataType);
|
|
}
|
|
~DataCallbackHandler() {
|
|
MOZ_CLIPBOARD_LOG("DataCallbackHandler deleted [%p]", this);
|
|
MOZ_COUNT_DTOR(DataCallbackHandler);
|
|
}
|
|
};
|
|
|
|
static void AsyncGetTextImpl(nsITransferable* aTransferable,
|
|
int32_t aWhichClipboard,
|
|
nsBaseClipboard::GetDataCallback&& aCallback) {
|
|
MOZ_CLIPBOARD_LOG("AsyncGetText() type '%s'",
|
|
aWhichClipboard == nsClipboard::kSelectionClipboard
|
|
? "primary"
|
|
: "clipboard");
|
|
|
|
gtk_clipboard_request_text(
|
|
gtk_clipboard_get(GetSelectionAtom(aWhichClipboard)),
|
|
[](GtkClipboard* aClipboard, const gchar* aText, gpointer aData) -> void {
|
|
UniquePtr<DataCallbackHandler> ref(
|
|
static_cast<DataCallbackHandler*>(aData));
|
|
MOZ_CLIPBOARD_LOG("AsyncGetText async handler of [%p]", aData);
|
|
|
|
size_t dataLength = aText ? strlen(aText) : 0;
|
|
if (dataLength <= 0) {
|
|
MOZ_CLIPBOARD_LOG(" quit, text is not available");
|
|
ref->mDataCallback(NS_OK);
|
|
return;
|
|
}
|
|
|
|
// Convert utf-8 into our unicode format.
|
|
NS_ConvertUTF8toUTF16 utf16string(aText, dataLength);
|
|
nsLiteralCString flavor(kTextMime);
|
|
SetTransferableData(ref->mTransferable, flavor,
|
|
(const char*)utf16string.BeginReading(),
|
|
utf16string.Length() * 2);
|
|
MOZ_CLIPBOARD_LOG(" text is set, length = %d", (int)dataLength);
|
|
ref->mDataCallback(NS_OK);
|
|
},
|
|
new DataCallbackHandler(aTransferable, std::move(aCallback), kTextMime));
|
|
}
|
|
|
|
static void AsyncGetDataImpl(nsITransferable* aTransferable,
|
|
int32_t aWhichClipboard, const char* aMimeType,
|
|
DataType aDataType,
|
|
nsBaseClipboard::GetDataCallback&& aCallback) {
|
|
MOZ_CLIPBOARD_LOG("AsyncGetData() type '%s'",
|
|
aWhichClipboard == nsClipboard::kSelectionClipboard
|
|
? "primary"
|
|
: "clipboard");
|
|
|
|
const char* gtkMIMEType = nullptr;
|
|
switch (aDataType) {
|
|
case DATATYPE_FILE:
|
|
// Don't ask Gtk for application/x-moz-file
|
|
gtkMIMEType = kURIListMime;
|
|
break;
|
|
case DATATYPE_IMAGE:
|
|
case DATATYPE_HTML:
|
|
case DATATYPE_RAW:
|
|
gtkMIMEType = aMimeType;
|
|
break;
|
|
}
|
|
|
|
gtk_clipboard_request_contents(
|
|
gtk_clipboard_get(GetSelectionAtom(aWhichClipboard)),
|
|
gdk_atom_intern(gtkMIMEType, FALSE),
|
|
[](GtkClipboard* aClipboard, GtkSelectionData* aSelection,
|
|
gpointer aData) -> void {
|
|
UniquePtr<DataCallbackHandler> ref(
|
|
static_cast<DataCallbackHandler*>(aData));
|
|
MOZ_CLIPBOARD_LOG("AsyncGetData async handler [%p] MIME %s type %d",
|
|
aData, ref->mMimeType.get(), ref->mDataType);
|
|
|
|
int dataLength = gtk_selection_data_get_length(aSelection);
|
|
if (dataLength <= 0) {
|
|
ref->mDataCallback(NS_OK);
|
|
return;
|
|
}
|
|
const char* data = (const char*)gtk_selection_data_get_data(aSelection);
|
|
if (!data) {
|
|
ref->mDataCallback(NS_OK);
|
|
return;
|
|
}
|
|
switch (ref->mDataType) {
|
|
case DATATYPE_IMAGE: {
|
|
MOZ_CLIPBOARD_LOG(" set image clipboard data");
|
|
nsCOMPtr<nsIInputStream> byteStream;
|
|
NS_NewByteInputStream(getter_AddRefs(byteStream),
|
|
Span(data, dataLength), NS_ASSIGNMENT_COPY);
|
|
ref->mTransferable->SetTransferData(ref->mMimeType.get(),
|
|
byteStream);
|
|
break;
|
|
}
|
|
case DATATYPE_FILE: {
|
|
MOZ_CLIPBOARD_LOG(" set file clipboard data");
|
|
nsDependentCSubstring file(data, dataLength);
|
|
TransferableSetFile(ref->mTransferable, file);
|
|
break;
|
|
}
|
|
case DATATYPE_HTML: {
|
|
MOZ_CLIPBOARD_LOG(" html clipboard data");
|
|
Span dataSpan(data, dataLength);
|
|
TransferableSetHTML(ref->mTransferable, dataSpan);
|
|
break;
|
|
}
|
|
case DATATYPE_RAW: {
|
|
MOZ_CLIPBOARD_LOG(" raw clipboard data %s", ref->mMimeType.get());
|
|
SetTransferableData(ref->mTransferable, ref->mMimeType, data,
|
|
dataLength);
|
|
break;
|
|
}
|
|
}
|
|
ref->mDataCallback(NS_OK);
|
|
},
|
|
new DataCallbackHandler(aTransferable, std::move(aCallback), aMimeType,
|
|
aDataType));
|
|
}
|
|
|
|
static void AsyncGetDataFlavor(nsITransferable* aTransferable,
|
|
int32_t aWhichClipboard, nsCString& aFlavorStr,
|
|
nsBaseClipboard::GetDataCallback&& aCallback) {
|
|
if (aFlavorStr.EqualsLiteral(kJPEGImageMime) ||
|
|
aFlavorStr.EqualsLiteral(kJPGImageMime) ||
|
|
aFlavorStr.EqualsLiteral(kPNGImageMime) ||
|
|
aFlavorStr.EqualsLiteral(kGIFImageMime)) {
|
|
// Emulate support for image/jpg
|
|
if (aFlavorStr.EqualsLiteral(kJPGImageMime)) {
|
|
aFlavorStr.Assign(kJPEGImageMime);
|
|
}
|
|
MOZ_CLIPBOARD_LOG(" Getting image %s MIME clipboard data",
|
|
aFlavorStr.get());
|
|
AsyncGetDataImpl(aTransferable, aWhichClipboard, aFlavorStr.get(),
|
|
DATATYPE_IMAGE, std::move(aCallback));
|
|
return;
|
|
}
|
|
// Special case text/plain since we can convert any
|
|
// string into text/plain
|
|
if (aFlavorStr.EqualsLiteral(kTextMime)) {
|
|
MOZ_CLIPBOARD_LOG(" Getting unicode clipboard data");
|
|
AsyncGetTextImpl(aTransferable, aWhichClipboard, std::move(aCallback));
|
|
return;
|
|
}
|
|
if (aFlavorStr.EqualsLiteral(kFileMime)) {
|
|
MOZ_CLIPBOARD_LOG(" Getting file clipboard data\n");
|
|
AsyncGetDataImpl(aTransferable, aWhichClipboard, aFlavorStr.get(),
|
|
DATATYPE_FILE, std::move(aCallback));
|
|
return;
|
|
}
|
|
if (aFlavorStr.EqualsLiteral(kHTMLMime)) {
|
|
MOZ_CLIPBOARD_LOG(" Getting HTML clipboard data");
|
|
AsyncGetDataImpl(aTransferable, aWhichClipboard, aFlavorStr.get(),
|
|
DATATYPE_HTML, std::move(aCallback));
|
|
return;
|
|
}
|
|
MOZ_CLIPBOARD_LOG(" Getting raw %s MIME clipboard data\n", aFlavorStr.get());
|
|
AsyncGetDataImpl(aTransferable, aWhichClipboard, aFlavorStr.get(),
|
|
DATATYPE_RAW, std::move(aCallback));
|
|
}
|
|
|
|
void nsClipboard::AsyncGetNativeClipboardData(nsITransferable* aTransferable,
|
|
int32_t aWhichClipboard,
|
|
GetDataCallback&& aCallback) {
|
|
MOZ_DIAGNOSTIC_ASSERT(aTransferable);
|
|
MOZ_DIAGNOSTIC_ASSERT(
|
|
nsIClipboard::IsClipboardTypeSupported(aWhichClipboard));
|
|
|
|
MOZ_CLIPBOARD_LOG("nsClipboard::AsyncGetNativeClipboardData (%s)",
|
|
aWhichClipboard == nsClipboard::kSelectionClipboard
|
|
? "primary"
|
|
: "clipboard");
|
|
nsTArray<nsCString> importedFlavors;
|
|
nsresult rv = GetTransferableFlavors(aTransferable, importedFlavors);
|
|
if (NS_FAILED(rv)) {
|
|
aCallback(rv);
|
|
return;
|
|
}
|
|
|
|
auto flavorsNum = importedFlavors.Length();
|
|
if (!flavorsNum) {
|
|
aCallback(NS_OK);
|
|
return;
|
|
}
|
|
#ifdef MOZ_LOGGING
|
|
if (flavorsNum > 1) {
|
|
MOZ_CLIPBOARD_LOG(
|
|
" Only first MIME type (%s) will be imported from clipboard!",
|
|
importedFlavors[0].get());
|
|
}
|
|
#endif
|
|
|
|
// Filter out MIME types on X11 to prevent unwanted conversions,
|
|
// see Bug 1611407
|
|
if (widget::GdkIsX11Display()) {
|
|
AsyncHasNativeClipboardDataMatchingFlavors(
|
|
importedFlavors, aWhichClipboard,
|
|
[aWhichClipboard, transferable = nsCOMPtr{aTransferable},
|
|
callback = std::move(aCallback)](auto aResultOrError) mutable {
|
|
if (aResultOrError.isErr()) {
|
|
callback(aResultOrError.unwrapErr());
|
|
return;
|
|
}
|
|
|
|
nsTArray<nsCString> clipboardFlavors =
|
|
std::move(aResultOrError.unwrap());
|
|
if (!clipboardFlavors.Length()) {
|
|
MOZ_CLIPBOARD_LOG(" no flavors in clipboard, quit.");
|
|
callback(NS_OK);
|
|
return;
|
|
}
|
|
|
|
AsyncGetDataFlavor(transferable, aWhichClipboard, clipboardFlavors[0],
|
|
std::move(callback));
|
|
});
|
|
return;
|
|
}
|
|
|
|
// Read clipboard directly on Wayland
|
|
AsyncGetDataFlavor(aTransferable, aWhichClipboard, importedFlavors[0],
|
|
std::move(aCallback));
|
|
}
|
|
|
|
nsresult nsClipboard::EmptyNativeClipboardData(int32_t aWhichClipboard) {
|
|
MOZ_DIAGNOSTIC_ASSERT(
|
|
nsIClipboard::IsClipboardTypeSupported(aWhichClipboard));
|
|
|
|
MOZ_CLIPBOARD_LOG(
|
|
"nsClipboard::EmptyNativeClipboardData (%s)\n",
|
|
aWhichClipboard == kSelectionClipboard ? "primary" : "clipboard");
|
|
if (aWhichClipboard == kSelectionClipboard) {
|
|
if (mSelectionTransferable) {
|
|
gtk_clipboard_clear(gtk_clipboard_get(GDK_SELECTION_PRIMARY));
|
|
MOZ_ASSERT(!mSelectionTransferable);
|
|
}
|
|
} else {
|
|
if (mGlobalTransferable) {
|
|
gtk_clipboard_clear(gtk_clipboard_get(GDK_SELECTION_CLIPBOARD));
|
|
MOZ_ASSERT(!mGlobalTransferable);
|
|
}
|
|
}
|
|
ClearCachedTargets(aWhichClipboard);
|
|
return NS_OK;
|
|
}
|
|
|
|
void nsClipboard::ClearTransferable(int32_t aWhichClipboard) {
|
|
if (aWhichClipboard == kSelectionClipboard) {
|
|
mSelectionSequenceNumber++;
|
|
mSelectionTransferable = nullptr;
|
|
} else {
|
|
mGlobalSequenceNumber++;
|
|
mGlobalTransferable = nullptr;
|
|
}
|
|
}
|
|
|
|
static bool FlavorMatchesTarget(const nsACString& aFlavor, GdkAtom aTarget) {
|
|
GUniquePtr<gchar> atom_name(gdk_atom_name(aTarget));
|
|
if (!atom_name) {
|
|
return false;
|
|
}
|
|
if (aFlavor.Equals(atom_name.get())) {
|
|
MOZ_CLIPBOARD_LOG(" has %s\n", atom_name.get());
|
|
return true;
|
|
}
|
|
// X clipboard supports image/jpeg, but we want to emulate support
|
|
// for image/jpg as well
|
|
if (aFlavor.EqualsLiteral(kJPGImageMime) &&
|
|
!strcmp(atom_name.get(), kJPEGImageMime)) {
|
|
MOZ_CLIPBOARD_LOG(" has image/jpg\n");
|
|
return true;
|
|
}
|
|
// application/x-moz-file should be treated like text/uri-list
|
|
if (aFlavor.EqualsLiteral(kFileMime) &&
|
|
!strcmp(atom_name.get(), kURIListMime)) {
|
|
MOZ_CLIPBOARD_LOG(
|
|
" has text/uri-list treating as application/x-moz-file");
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
mozilla::Result<bool, nsresult>
|
|
nsClipboard::HasNativeClipboardDataMatchingFlavors(
|
|
const nsTArray<nsCString>& aFlavorList, int32_t aWhichClipboard) {
|
|
MOZ_DIAGNOSTIC_ASSERT(
|
|
nsIClipboard::IsClipboardTypeSupported(aWhichClipboard));
|
|
|
|
MOZ_CLIPBOARD_LOG(
|
|
"nsClipboard::HasNativeClipboardDataMatchingFlavors (%s)\n",
|
|
aWhichClipboard == kSelectionClipboard ? "primary" : "clipboard");
|
|
|
|
if (!mContext) {
|
|
return Err(NS_ERROR_FAILURE);
|
|
}
|
|
|
|
auto targets = mContext->GetTargets(aWhichClipboard);
|
|
if (!targets) {
|
|
MOZ_CLIPBOARD_LOG(" no targes at clipboard (null)\n");
|
|
return false;
|
|
}
|
|
|
|
#ifdef MOZ_LOGGING
|
|
if (MOZ_CLIPBOARD_LOG_ENABLED()) {
|
|
MOZ_CLIPBOARD_LOG(" Asking for content:\n");
|
|
for (auto& flavor : aFlavorList) {
|
|
MOZ_CLIPBOARD_LOG(" MIME %s\n", flavor.get());
|
|
}
|
|
MOZ_CLIPBOARD_LOG(" Clipboard content (target nums %zu):\n",
|
|
targets.AsSpan().Length());
|
|
for (const auto& target : targets.AsSpan()) {
|
|
GUniquePtr<gchar> atom_name(gdk_atom_name(target));
|
|
if (!atom_name) {
|
|
MOZ_CLIPBOARD_LOG(" failed to get MIME\n");
|
|
continue;
|
|
}
|
|
MOZ_CLIPBOARD_LOG(" MIME %s\n", atom_name.get());
|
|
}
|
|
}
|
|
#endif
|
|
|
|
// Walk through the provided types and try to match it to a
|
|
// provided type.
|
|
for (auto& flavor : aFlavorList) {
|
|
// We special case text/plain here.
|
|
if (flavor.EqualsLiteral(kTextMime) &&
|
|
gtk_targets_include_text(targets.AsSpan().data(),
|
|
targets.AsSpan().Length())) {
|
|
MOZ_CLIPBOARD_LOG(" has kTextMime\n");
|
|
return true;
|
|
}
|
|
for (const auto& target : targets.AsSpan()) {
|
|
if (FlavorMatchesTarget(flavor, target)) {
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
|
|
MOZ_CLIPBOARD_LOG(" no targes at clipboard (bad match)\n");
|
|
return false;
|
|
}
|
|
|
|
struct TragetCallbackHandler {
|
|
TragetCallbackHandler(const nsTArray<nsCString>& aAcceptedFlavorList,
|
|
nsBaseClipboard::HasMatchingFlavorsCallback&& aCallback)
|
|
: mAcceptedFlavorList(aAcceptedFlavorList.Clone()),
|
|
mCallback(std::move(aCallback)) {
|
|
MOZ_CLIPBOARD_LOG("TragetCallbackHandler(%p) created", this);
|
|
}
|
|
~TragetCallbackHandler() {
|
|
MOZ_CLIPBOARD_LOG("TragetCallbackHandler(%p) deleted", this);
|
|
}
|
|
nsTArray<nsCString> mAcceptedFlavorList;
|
|
nsBaseClipboard::HasMatchingFlavorsCallback mCallback;
|
|
};
|
|
|
|
void nsClipboard::AsyncHasNativeClipboardDataMatchingFlavors(
|
|
const nsTArray<nsCString>& aFlavorList, int32_t aWhichClipboard,
|
|
nsBaseClipboard::HasMatchingFlavorsCallback&& aCallback) {
|
|
MOZ_DIAGNOSTIC_ASSERT(
|
|
nsIClipboard::IsClipboardTypeSupported(aWhichClipboard));
|
|
|
|
MOZ_CLIPBOARD_LOG(
|
|
"nsClipboard::AsyncHasNativeClipboardDataMatchingFlavors (%s)",
|
|
aWhichClipboard == kSelectionClipboard ? "primary" : "clipboard");
|
|
|
|
gtk_clipboard_request_contents(
|
|
gtk_clipboard_get(GetSelectionAtom(aWhichClipboard)),
|
|
gdk_atom_intern("TARGETS", FALSE),
|
|
[](GtkClipboard* aClipboard, GtkSelectionData* aSelection,
|
|
gpointer aData) -> void {
|
|
MOZ_CLIPBOARD_LOG("gtk_clipboard_request_contents async handler (%p)",
|
|
aData);
|
|
UniquePtr<TragetCallbackHandler> handler(
|
|
static_cast<TragetCallbackHandler*>(aData));
|
|
|
|
GdkAtom* targets = nullptr;
|
|
gint targetsNum = 0;
|
|
if (gtk_selection_data_get_length(aSelection) > 0) {
|
|
gtk_selection_data_get_targets(aSelection, &targets, &targetsNum);
|
|
|
|
#ifdef MOZ_LOGGING
|
|
if (MOZ_CLIPBOARD_LOG_ENABLED()) {
|
|
MOZ_CLIPBOARD_LOG(" Clipboard content (target nums %d):\n",
|
|
targetsNum);
|
|
for (int i = 0; i < targetsNum; i++) {
|
|
GUniquePtr<gchar> atom_name(gdk_atom_name(targets[i]));
|
|
if (!atom_name) {
|
|
MOZ_CLIPBOARD_LOG(" failed to get MIME\n");
|
|
continue;
|
|
}
|
|
MOZ_CLIPBOARD_LOG(" MIME %s\n", atom_name.get());
|
|
}
|
|
}
|
|
#endif
|
|
}
|
|
nsTArray<nsCString> results;
|
|
if (targetsNum) {
|
|
for (auto& flavor : handler->mAcceptedFlavorList) {
|
|
MOZ_CLIPBOARD_LOG(" looking for %s", flavor.get());
|
|
if (flavor.EqualsLiteral(kTextMime) &&
|
|
gtk_targets_include_text(targets, targetsNum)) {
|
|
results.AppendElement(flavor);
|
|
MOZ_CLIPBOARD_LOG(" has kTextMime\n");
|
|
continue;
|
|
}
|
|
for (int i = 0; i < targetsNum; i++) {
|
|
if (FlavorMatchesTarget(flavor, targets[i])) {
|
|
results.AppendElement(flavor);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
handler->mCallback(std::move(results));
|
|
},
|
|
new TragetCallbackHandler(aFlavorList, std::move(aCallback)));
|
|
}
|
|
|
|
nsITransferable* nsClipboard::GetTransferable(int32_t aWhichClipboard) {
|
|
nsITransferable* retval;
|
|
|
|
if (aWhichClipboard == kSelectionClipboard)
|
|
retval = mSelectionTransferable.get();
|
|
else
|
|
retval = mGlobalTransferable.get();
|
|
|
|
return retval;
|
|
}
|
|
|
|
void nsClipboard::SelectionGetEvent(GtkClipboard* aClipboard,
|
|
GtkSelectionData* aSelectionData) {
|
|
// Someone has asked us to hand them something. The first thing
|
|
// that we want to do is see if that something includes text. If
|
|
// it does, try to give it text/plain after converting it to
|
|
// utf-8.
|
|
|
|
int32_t whichClipboard;
|
|
|
|
// which clipboard?
|
|
GdkAtom selection = gtk_selection_data_get_selection(aSelectionData);
|
|
if (selection == GDK_SELECTION_PRIMARY)
|
|
whichClipboard = kSelectionClipboard;
|
|
else if (selection == GDK_SELECTION_CLIPBOARD)
|
|
whichClipboard = kGlobalClipboard;
|
|
else
|
|
return; // THAT AIN'T NO CLIPBOARD I EVER HEARD OF
|
|
|
|
MOZ_CLIPBOARD_LOG(
|
|
"nsClipboard::SelectionGetEvent (%s)\n",
|
|
whichClipboard == kSelectionClipboard ? "primary" : "clipboard");
|
|
|
|
nsCOMPtr<nsITransferable> trans = GetTransferable(whichClipboard);
|
|
if (!trans) {
|
|
// We have nothing to serve
|
|
MOZ_CLIPBOARD_LOG(
|
|
"nsClipboard::SelectionGetEvent() - %s clipboard is empty!\n",
|
|
whichClipboard == kSelectionClipboard ? "Primary" : "Clipboard");
|
|
return;
|
|
}
|
|
|
|
nsresult rv;
|
|
nsCOMPtr<nsISupports> item;
|
|
|
|
GdkAtom selectionTarget = gtk_selection_data_get_target(aSelectionData);
|
|
MOZ_CLIPBOARD_LOG(" selection target %s\n",
|
|
GUniquePtr<gchar>(gdk_atom_name(selectionTarget)).get());
|
|
|
|
// Check to see if the selection data is some text type.
|
|
if (gtk_targets_include_text(&selectionTarget, 1)) {
|
|
MOZ_CLIPBOARD_LOG(" providing text/plain data\n");
|
|
// Try to convert our internal type into a text string. Get
|
|
// the transferable for this clipboard and try to get the
|
|
// text/plain type for it.
|
|
rv = trans->GetTransferData("text/plain", getter_AddRefs(item));
|
|
if (NS_FAILED(rv) || !item) {
|
|
MOZ_CLIPBOARD_LOG(" GetTransferData() failed to get text/plain!\n");
|
|
return;
|
|
}
|
|
|
|
nsCOMPtr<nsISupportsString> wideString;
|
|
wideString = do_QueryInterface(item);
|
|
if (!wideString) return;
|
|
|
|
nsAutoString ucs2string;
|
|
wideString->GetData(ucs2string);
|
|
NS_ConvertUTF16toUTF8 utf8string(ucs2string);
|
|
|
|
MOZ_CLIPBOARD_LOG(" sent %zd bytes of utf-8 data\n", utf8string.Length());
|
|
if (selectionTarget == gdk_atom_intern("text/plain;charset=utf-8", FALSE)) {
|
|
MOZ_CLIPBOARD_LOG(
|
|
" using gtk_selection_data_set for 'text/plain;charset=utf-8'\n");
|
|
// Bypass gtk_selection_data_set_text, which will convert \n to \r\n
|
|
// in some versions of GTK.
|
|
gtk_selection_data_set(aSelectionData, selectionTarget, 8,
|
|
reinterpret_cast<const guchar*>(utf8string.get()),
|
|
utf8string.Length());
|
|
} else {
|
|
gtk_selection_data_set_text(aSelectionData, utf8string.get(),
|
|
utf8string.Length());
|
|
}
|
|
return;
|
|
}
|
|
|
|
// Check to see if the selection data is an image type
|
|
if (gtk_targets_include_image(&selectionTarget, 1, TRUE)) {
|
|
MOZ_CLIPBOARD_LOG(" providing image data\n");
|
|
// Look through our transfer data for the image
|
|
static const char* const imageMimeTypes[] = {kNativeImageMime,
|
|
kPNGImageMime, kJPEGImageMime,
|
|
kJPGImageMime, kGIFImageMime};
|
|
nsCOMPtr<nsISupports> imageItem;
|
|
nsCOMPtr<imgIContainer> image;
|
|
for (uint32_t i = 0; i < ArrayLength(imageMimeTypes); i++) {
|
|
rv = trans->GetTransferData(imageMimeTypes[i], getter_AddRefs(imageItem));
|
|
if (NS_FAILED(rv)) {
|
|
MOZ_CLIPBOARD_LOG(" %s is missing at GetTransferData()\n",
|
|
imageMimeTypes[i]);
|
|
continue;
|
|
}
|
|
|
|
image = do_QueryInterface(imageItem);
|
|
if (image) {
|
|
MOZ_CLIPBOARD_LOG(" %s is available at GetTransferData()\n",
|
|
imageMimeTypes[i]);
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (!image) { // Not getting an image for an image mime type!?
|
|
MOZ_CLIPBOARD_LOG(
|
|
" Failed to get any image mime from GetTransferData()!\n");
|
|
return;
|
|
}
|
|
|
|
RefPtr<GdkPixbuf> pixbuf = nsImageToPixbuf::ImageToPixbuf(image);
|
|
if (!pixbuf) {
|
|
MOZ_CLIPBOARD_LOG(" nsImageToPixbuf::ImageToPixbuf() failed!\n");
|
|
return;
|
|
}
|
|
|
|
MOZ_CLIPBOARD_LOG(" Setting pixbuf image data as %s\n",
|
|
GUniquePtr<gchar>(gdk_atom_name(selectionTarget)).get());
|
|
gtk_selection_data_set_pixbuf(aSelectionData, pixbuf);
|
|
return;
|
|
}
|
|
|
|
if (selectionTarget == gdk_atom_intern(kHTMLMime, FALSE)) {
|
|
MOZ_CLIPBOARD_LOG(" providing %s data\n", kHTMLMime);
|
|
rv = trans->GetTransferData(kHTMLMime, getter_AddRefs(item));
|
|
if (NS_FAILED(rv) || !item) {
|
|
MOZ_CLIPBOARD_LOG(" failed to get %s data by GetTransferData()!\n",
|
|
kHTMLMime);
|
|
return;
|
|
}
|
|
|
|
nsCOMPtr<nsISupportsString> wideString;
|
|
wideString = do_QueryInterface(item);
|
|
if (!wideString) {
|
|
MOZ_CLIPBOARD_LOG(" failed to get wideString interface!");
|
|
return;
|
|
}
|
|
|
|
nsAutoString ucs2string;
|
|
wideString->GetData(ucs2string);
|
|
|
|
nsAutoCString html;
|
|
// Add the prefix so the encoding is correctly detected.
|
|
html.AppendLiteral(kHTMLMarkupPrefix);
|
|
AppendUTF16toUTF8(ucs2string, html);
|
|
|
|
MOZ_CLIPBOARD_LOG(" Setting %zd bytes of %s data\n", html.Length(),
|
|
GUniquePtr<gchar>(gdk_atom_name(selectionTarget)).get());
|
|
gtk_selection_data_set(aSelectionData, selectionTarget, 8,
|
|
(const guchar*)html.get(), html.Length());
|
|
return;
|
|
}
|
|
|
|
// We put kFileMime onto the clipboard as kURIListMime.
|
|
if (selectionTarget == gdk_atom_intern(kURIListMime, FALSE)) {
|
|
MOZ_CLIPBOARD_LOG(" providing %s data\n", kURIListMime);
|
|
rv = trans->GetTransferData(kFileMime, getter_AddRefs(item));
|
|
if (NS_FAILED(rv) || !item) {
|
|
MOZ_CLIPBOARD_LOG(" failed to get %s data by GetTransferData()!\n",
|
|
kFileMime);
|
|
return;
|
|
}
|
|
|
|
nsCOMPtr<nsIFile> file = do_QueryInterface(item);
|
|
if (!file) {
|
|
MOZ_CLIPBOARD_LOG(" failed to get nsIFile interface!");
|
|
return;
|
|
}
|
|
|
|
nsCOMPtr<nsIURI> fileURI;
|
|
rv = NS_NewFileURI(getter_AddRefs(fileURI), file);
|
|
if (NS_FAILED(rv)) {
|
|
MOZ_CLIPBOARD_LOG(" failed to get fileURI\n");
|
|
return;
|
|
}
|
|
|
|
nsAutoCString uri;
|
|
if (NS_FAILED(fileURI->GetSpec(uri))) {
|
|
MOZ_CLIPBOARD_LOG(" failed to get fileURI spec\n");
|
|
return;
|
|
}
|
|
|
|
MOZ_CLIPBOARD_LOG(" Setting %zd bytes of data\n", uri.Length());
|
|
gtk_selection_data_set(aSelectionData, selectionTarget, 8,
|
|
(const guchar*)uri.get(), uri.Length());
|
|
return;
|
|
}
|
|
|
|
MOZ_CLIPBOARD_LOG(" Try if we have anything at GetTransferData() for %s\n",
|
|
GUniquePtr<gchar>(gdk_atom_name(selectionTarget)).get());
|
|
|
|
// Try to match up the selection data target to something our
|
|
// transferable provides.
|
|
GUniquePtr<gchar> target_name(gdk_atom_name(selectionTarget));
|
|
if (!target_name) {
|
|
MOZ_CLIPBOARD_LOG(" Failed to get target name!\n");
|
|
return;
|
|
}
|
|
|
|
rv = trans->GetTransferData(target_name.get(), getter_AddRefs(item));
|
|
// nothing found?
|
|
if (NS_FAILED(rv) || !item) {
|
|
MOZ_CLIPBOARD_LOG(" Failed to get anything from GetTransferData()!\n");
|
|
return;
|
|
}
|
|
|
|
void* primitive_data = nullptr;
|
|
uint32_t dataLen = 0;
|
|
nsPrimitiveHelpers::CreateDataFromPrimitive(
|
|
nsDependentCString(target_name.get()), item, &primitive_data, &dataLen);
|
|
if (!primitive_data) {
|
|
MOZ_CLIPBOARD_LOG(" Failed to get primitive data!\n");
|
|
return;
|
|
}
|
|
|
|
MOZ_CLIPBOARD_LOG(" Setting %s as a primitive data type, %d bytes\n",
|
|
target_name.get(), dataLen);
|
|
gtk_selection_data_set(aSelectionData, selectionTarget,
|
|
8, /* 8 bits in a unit */
|
|
(const guchar*)primitive_data, dataLen);
|
|
free(primitive_data);
|
|
}
|
|
|
|
void nsClipboard::ClearCachedTargets(int32_t aWhichClipboard) {
|
|
if (aWhichClipboard == kSelectionClipboard) {
|
|
nsRetrievalContext::ClearCachedTargetsPrimary(nullptr, nullptr, nullptr);
|
|
} else {
|
|
nsRetrievalContext::ClearCachedTargetsClipboard(nullptr, nullptr, nullptr);
|
|
}
|
|
}
|
|
|
|
void nsClipboard::SelectionClearEvent(GtkClipboard* aGtkClipboard) {
|
|
int32_t whichClipboard = GetGeckoClipboardType(aGtkClipboard);
|
|
if (whichClipboard < 0) {
|
|
return;
|
|
}
|
|
MOZ_CLIPBOARD_LOG(
|
|
"nsClipboard::SelectionClearEvent (%s)\n",
|
|
whichClipboard == kSelectionClipboard ? "primary" : "clipboard");
|
|
ClearCachedTargets(whichClipboard);
|
|
ClearTransferable(whichClipboard);
|
|
ClearClipboardCache(whichClipboard);
|
|
}
|
|
|
|
void nsClipboard::OwnerChangedEvent(GtkClipboard* aGtkClipboard,
|
|
GdkEventOwnerChange* aEvent) {
|
|
int32_t whichClipboard = GetGeckoClipboardType(aGtkClipboard);
|
|
if (whichClipboard < 0) {
|
|
return;
|
|
}
|
|
MOZ_CLIPBOARD_LOG(
|
|
"nsClipboard::OwnerChangedEvent (%s)\n",
|
|
whichClipboard == kSelectionClipboard ? "primary" : "clipboard");
|
|
GtkWidget* gtkWidget = [aEvent]() -> GtkWidget* {
|
|
if (!aEvent->owner) {
|
|
return nullptr;
|
|
}
|
|
gpointer user_data = nullptr;
|
|
gdk_window_get_user_data(aEvent->owner, &user_data);
|
|
return GTK_WIDGET(user_data);
|
|
}();
|
|
// If we can get GtkWidget from the current clipboard owner, this
|
|
// owner-changed event must be triggered by ourself via calling
|
|
// gtk_clipboard_set_with_data, the sequence number should already be handled.
|
|
if (!gtkWidget) {
|
|
if (whichClipboard == kSelectionClipboard) {
|
|
mSelectionSequenceNumber++;
|
|
} else {
|
|
mGlobalSequenceNumber++;
|
|
}
|
|
}
|
|
|
|
ClearCachedTargets(whichClipboard);
|
|
}
|
|
|
|
void clipboard_get_cb(GtkClipboard* aGtkClipboard,
|
|
GtkSelectionData* aSelectionData, guint info,
|
|
gpointer user_data) {
|
|
MOZ_CLIPBOARD_LOG("clipboard_get_cb() callback\n");
|
|
nsClipboard* clipboard = static_cast<nsClipboard*>(user_data);
|
|
clipboard->SelectionGetEvent(aGtkClipboard, aSelectionData);
|
|
}
|
|
|
|
void clipboard_clear_cb(GtkClipboard* aGtkClipboard, gpointer user_data) {
|
|
MOZ_CLIPBOARD_LOG("clipboard_clear_cb() callback\n");
|
|
nsClipboard* clipboard = static_cast<nsClipboard*>(user_data);
|
|
clipboard->SelectionClearEvent(aGtkClipboard);
|
|
}
|
|
|
|
void clipboard_owner_change_cb(GtkClipboard* aGtkClipboard,
|
|
GdkEventOwnerChange* aEvent,
|
|
gpointer aUserData) {
|
|
MOZ_CLIPBOARD_LOG("clipboard_owner_change_cb() callback\n");
|
|
nsClipboard* clipboard = static_cast<nsClipboard*>(aUserData);
|
|
clipboard->OwnerChangedEvent(aGtkClipboard, aEvent);
|
|
}
|
|
|
|
/*
|
|
* This function extracts the encoding label from the subset of HTML internal
|
|
* encoding declaration syntax that uses the old long form with double quotes
|
|
* and without spaces around the equals sign between the "content" attribute
|
|
* name and the attribute value.
|
|
*
|
|
* This was added for the sake of an ancient version of StarOffice
|
|
* in the pre-UTF-8 era in bug 123389. It is unclear if supporting
|
|
* non-UTF-8 encodings is still necessary and if this function
|
|
* still needs to exist.
|
|
*
|
|
* As of December 2022, both Gecko and LibreOffice emit an UTF-8
|
|
* declaration that this function successfully extracts "UTF-8" from,
|
|
* but that's also the default that we fall back on if this function
|
|
* fails to extract a label.
|
|
*/
|
|
bool GetHTMLCharset(Span<const char> aData, nsCString& aFoundCharset) {
|
|
// Assume ASCII first to find "charset" info
|
|
const nsDependentCSubstring htmlStr(aData);
|
|
nsACString::const_iterator start, end;
|
|
htmlStr.BeginReading(start);
|
|
htmlStr.EndReading(end);
|
|
nsACString::const_iterator valueStart(start), valueEnd(start);
|
|
|
|
if (CaseInsensitiveFindInReadable("CONTENT=\"text/html;"_ns, start, end)) {
|
|
start = end;
|
|
htmlStr.EndReading(end);
|
|
|
|
if (CaseInsensitiveFindInReadable("charset="_ns, start, end)) {
|
|
valueStart = end;
|
|
start = end;
|
|
htmlStr.EndReading(end);
|
|
|
|
if (FindCharInReadable('"', start, end)) valueEnd = start;
|
|
}
|
|
}
|
|
// find "charset" in HTML
|
|
if (valueStart != valueEnd) {
|
|
aFoundCharset = Substring(valueStart, valueEnd);
|
|
ToUpperCase(aFoundCharset);
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|