cef/libcef/browser/extensions/browser_platform_delegate_background.cc
Marshall Greenblatt 2ea7459a89 Use Chrome file dialogs on all platforms and runtimes (fixes issue #3314)
All file dialogs irrespective of source, platform and runtime will now be
routed through CefFileDialogManager and trigger CefDialogHandler callbacks
(see issue #3293).

Adds Chrome runtime support for CefBrowserHost::RunFileDialog and
CefDialogHandler callbacks.

Adds Alloy runtime support for internal GTK file and print dialogs on Linux
subject to the following limitations:

1. Internal GTK implementation:
   - Cannot be used with multi-threaded-message-loop because Chromium's
     internal GTK implementation is not thread-safe (does not use GDK threads).
   - Dialogs will not be modal to application windows when used with off-screen
     rendering due to lack of access to the client's top-level GtkWindow.
2. Cefclient CefDialogHandler implementation:
   - Cannot be used with Views because it requires a top-level GtkWindow.

Due to the above limitations no dialog implementation is currently provided for
Views + multi-threaded-message-loop on Linux. In cases where both
implementations are supported the cefclient version is now behind an optional
`--use-client-dialogs` command-line flag.

Expressly forbids multiple simultaneous file dialogs with the internal platform
implementation which uses modal dialogs. CefDialogHandler will still be notified
and can optionally handle each request without a modal dialog (see issue #3154).

Removes some RunFileDialog parameters that are not supported by the Chrome file
dialog implementation (selected_accept_filter parameter, cef_file_dialog_mode_t
overwrite/read-only flags).
2022-04-19 18:52:26 -04:00

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3.6 KiB
C++

// Copyright 2017 The Chromium Embedded Framework Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "libcef/browser/extensions/browser_platform_delegate_background.h"
#include <utility>
#include "libcef/browser/alloy/alloy_browser_host_impl.h"
#include "libcef/browser/thread_util.h"
#include "libcef/features/runtime_checks.h"
#include "content/public/browser/render_view_host.h"
#include "content/public/browser/render_widget_host.h"
CefBrowserPlatformDelegateBackground::CefBrowserPlatformDelegateBackground(
std::unique_ptr<CefBrowserPlatformDelegateNative> native_delegate)
: native_delegate_(std::move(native_delegate)) {
REQUIRE_ALLOY_RUNTIME();
native_delegate_->set_windowless_handler(this);
}
bool CefBrowserPlatformDelegateBackground::CreateHostWindow() {
// Nothing to do here.
return true;
}
void CefBrowserPlatformDelegateBackground::CloseHostWindow() {
// No host window, so continue browser destruction now. Do it asynchronously
// so the call stack has a chance to unwind.
CEF_POST_TASK(CEF_UIT,
base::BindOnce(&AlloyBrowserHostImpl::WindowDestroyed,
static_cast<AlloyBrowserHostImpl*>(browser_)));
}
CefWindowHandle CefBrowserPlatformDelegateBackground::GetHostWindowHandle()
const {
return kNullWindowHandle;
}
SkColor CefBrowserPlatformDelegateBackground::GetBackgroundColor() const {
return native_delegate_->GetBackgroundColor();
}
void CefBrowserPlatformDelegateBackground::WasResized() {
// Nothing to do here.
}
void CefBrowserPlatformDelegateBackground::SendKeyEvent(
const CefKeyEvent& event) {
// Nothing to do here.
}
void CefBrowserPlatformDelegateBackground::SendMouseClickEvent(
const CefMouseEvent& event,
CefBrowserHost::MouseButtonType type,
bool mouseUp,
int clickCount) {
// Nothing to do here.
}
void CefBrowserPlatformDelegateBackground::SendMouseMoveEvent(
const CefMouseEvent& event,
bool mouseLeave) {
// Nothing to do here.
}
void CefBrowserPlatformDelegateBackground::SendMouseWheelEvent(
const CefMouseEvent& event,
int deltaX,
int deltaY) {
// Nothing to do here.
}
void CefBrowserPlatformDelegateBackground::SendTouchEvent(
const CefTouchEvent& event) {
// Nothing to do here.
}
void CefBrowserPlatformDelegateBackground::SetFocus(bool setFocus) {
// Nothing to do here.
}
gfx::Point CefBrowserPlatformDelegateBackground::GetScreenPoint(
const gfx::Point& view_pt) const {
// Nothing to do here.
return view_pt;
}
void CefBrowserPlatformDelegateBackground::ViewText(const std::string& text) {
native_delegate_->ViewText(text);
}
bool CefBrowserPlatformDelegateBackground::HandleKeyboardEvent(
const content::NativeWebKeyboardEvent& event) {
// Nothing to do here.
return false;
}
CefEventHandle CefBrowserPlatformDelegateBackground::GetEventHandle(
const content::NativeWebKeyboardEvent& event) const {
return native_delegate_->GetEventHandle(event);
}
std::unique_ptr<CefJavaScriptDialogRunner>
CefBrowserPlatformDelegateBackground::CreateJavaScriptDialogRunner() {
return native_delegate_->CreateJavaScriptDialogRunner();
}
std::unique_ptr<CefMenuRunner>
CefBrowserPlatformDelegateBackground::CreateMenuRunner() {
// No default menu implementation for background browsers.
return nullptr;
}
CefWindowHandle CefBrowserPlatformDelegateBackground::GetParentWindowHandle()
const {
return GetHostWindowHandle();
}
gfx::Point CefBrowserPlatformDelegateBackground::GetParentScreenPoint(
const gfx::Point& view) const {
return GetScreenPoint(view);
}