mirror of
https://bitbucket.org/chromiumembedded/cef
synced 2024-12-14 02:24:03 +01:00
725ed88529
- Windows: 10.0.17763.0 SDK is now required. - Mac: 10.13 SDK is now required. - Removed CefRequestContext::ResolveHostCached which is no longer supported by Chromium.
105 lines
4.2 KiB
Diff
105 lines
4.2 KiB
Diff
diff --git base/message_loop/message_loop.cc base/message_loop/message_loop.cc
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index fff922d36819..28fea401be5f 100644
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--- base/message_loop/message_loop.cc
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+++ base/message_loop/message_loop.cc
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@@ -163,6 +163,9 @@ MessageLoopBase* MessageLoop::GetMessageLoopBase() {
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//------------------------------------------------------------------------------
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+MessageLoopForUI::MessageLoopForUI(std::unique_ptr<MessagePump> pump)
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+ : MessageLoop(TYPE_UI, std::move(pump)) {}
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+
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// static
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std::unique_ptr<MessageLoop> MessageLoop::CreateUnbound(Type type) {
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return WrapUnique(new MessageLoop(type, nullptr));
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diff --git base/message_loop/message_loop.h base/message_loop/message_loop.h
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index 46782b49a7f0..78ebaf71cbdf 100644
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--- base/message_loop/message_loop.h
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+++ base/message_loop/message_loop.h
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@@ -377,6 +377,7 @@ class BASE_EXPORT MessageLoop {
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class BASE_EXPORT MessageLoopForUI : public MessageLoop {
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public:
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explicit MessageLoopForUI(Type type = TYPE_UI);
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+ explicit MessageLoopForUI(std::unique_ptr<MessagePump> pump);
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#if defined(OS_IOS)
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// On iOS, the main message loop cannot be Run(). Instead call Attach(),
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diff --git base/message_loop/message_loop_current.cc base/message_loop/message_loop_current.cc
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index c0b2ff7e0ad6..75802589ca01 100644
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--- base/message_loop/message_loop_current.cc
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+++ base/message_loop/message_loop_current.cc
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@@ -49,6 +49,8 @@ void MessageLoopCurrent::AddDestructionObserver(
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void MessageLoopCurrent::RemoveDestructionObserver(
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DestructionObserver* destruction_observer) {
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+ if (!current_)
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+ return;
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DCHECK(current_->IsBoundToCurrentThread());
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current_->RemoveDestructionObserver(destruction_observer);
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}
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diff --git base/message_loop/message_loop_current.h base/message_loop/message_loop_current.h
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index bcab89d6e2e7..3160b321990e 100644
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--- base/message_loop/message_loop_current.h
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+++ base/message_loop/message_loop_current.h
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@@ -133,6 +133,12 @@ class BASE_EXPORT MessageLoopCurrent {
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// posted tasks.
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void SetAddQueueTimeToTasks(bool enable);
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+#if defined(OS_WIN)
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+ void set_os_modal_loop(bool os_modal_loop) { os_modal_loop_ = os_modal_loop; }
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+
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+ bool os_modal_loop() const { return os_modal_loop_; }
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+#endif // OS_WIN
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+
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// Enables or disables the recursive task processing. This happens in the case
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// of recursive message loops. Some unwanted message loops may occur when
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// using common controls or printer functions. By default, recursive task
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@@ -213,6 +219,13 @@ class BASE_EXPORT MessageLoopCurrent {
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MessageLoopBase* ToMessageLoopBaseDeprecated() const { return current_; }
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MessageLoopBase* current_;
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+
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+#if defined(OS_WIN)
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+ private:
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+ // Should be set to true before calling Windows APIs like TrackPopupMenu, etc.
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+ // which enter a modal message loop.
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+ bool os_modal_loop_ = false;
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+#endif
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};
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#if !defined(OS_NACL)
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diff --git base/message_loop/message_pump_win.cc base/message_loop/message_pump_win.cc
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index 3e9562cc4cc5..cf4a700364d3 100644
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--- base/message_loop/message_pump_win.cc
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+++ base/message_loop/message_pump_win.cc
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@@ -2,6 +2,7 @@
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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+#include "base/message_loop/message_loop_current.h"
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#include "base/message_loop/message_pump_win.h"
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#include <algorithm>
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@@ -493,10 +494,18 @@ bool MessagePumpForUI::ProcessPumpReplacementMessage() {
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// asynchronous to this thread!!
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MSG msg;
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- const bool have_message =
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- ::PeekMessage(&msg, nullptr, 0, 0, PM_REMOVE) != FALSE;
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+ bool have_message = false;
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+ // We should not process all window messages if we are in the context of an
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+ // OS modal loop, i.e. in the context of a windows API call like MessageBox.
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+ // This is to ensure that these messages are peeked out by the OS modal loop.
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+ if (MessageLoopCurrent::Get()->os_modal_loop()) {
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+ // We only peek out WM_PAINT and WM_TIMER here for reasons mentioned above.
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+ have_message = PeekMessage(&msg, NULL, WM_PAINT, WM_PAINT, PM_REMOVE) ||
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+ PeekMessage(&msg, NULL, WM_TIMER, WM_TIMER, PM_REMOVE);
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+ } else {
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+ have_message = PeekMessage(&msg, NULL, 0, 0, PM_REMOVE) != FALSE;
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+ }
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- // Expect no message or a message different than kMsgHaveWork.
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DCHECK(!have_message || kMsgHaveWork != msg.message ||
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msg.hwnd != message_window_.hwnd());
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