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authorpiman <piman@chromium.org>2016-03-18 14:32:58 -0700
committerCommit bot <commit-bot@chromium.org>2016-03-18 21:35:03 +0000
commitbfb2cebc0c8dacff0b93a37a822babe8c2bc0f5e (patch)
treee92e098c0eb14a14f4bcb0c2bafca9b0193f9521 /content/browser/renderer_host/render_widget_host_view_base.cc
parent69da898ef90feb49e414476934abf708ed04c093 (diff)
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Remove windowed NPAPI code
BUG=493212 CQ_INCLUDE_TRYBOTS=tryserver.chromium.linux:linux_site_isolation Review URL: https://codereview.chromium.org/1815593002 Cr-Commit-Position: refs/heads/master@{#382094}
Diffstat (limited to 'content/browser/renderer_host/render_widget_host_view_base.cc')
-rw-r--r--content/browser/renderer_host/render_widget_host_view_base.cc338
1 files changed, 0 insertions, 338 deletions
diff --git a/content/browser/renderer_host/render_widget_host_view_base.cc b/content/browser/renderer_host/render_widget_host_view_base.cc
index 8a4e0ed..d3dd8d0 100644
--- a/content/browser/renderer_host/render_widget_host_view_base.cc
+++ b/content/browser/renderer_host/render_widget_host_view_base.cc
@@ -21,346 +21,8 @@
#include "ui/gfx/geometry/size_f.h"
#include "ui/gfx/screen.h"
-#if defined(OS_WIN)
-#include "base/command_line.h"
-#include "base/message_loop/message_loop.h"
-#include "base/win/wrapped_window_proc.h"
-#include "content/browser/plugin_process_host.h"
-#include "content/browser/plugin_service_impl.h"
-#include "content/common/plugin_constants_win.h"
-#include "content/common/webplugin_geometry.h"
-#include "content/public/browser/browser_thread.h"
-#include "content/public/browser/child_process_data.h"
-#include "content/public/common/content_switches.h"
-#include "ui/gfx/gdi_util.h"
-#include "ui/gfx/win/dpi.h"
-#include "ui/gfx/win/hwnd_util.h"
-#endif
-
namespace content {
-#if defined(OS_WIN)
-
-namespace {
-
-// |window| is the plugin HWND, created and destroyed in the plugin process.
-// |parent| is the parent HWND, created and destroyed on the browser UI thread.
-void NotifyPluginProcessHostHelper(HWND window, HWND parent, int tries) {
- // How long to wait between each try.
- static const int kTryDelayMs = 200;
-
- DWORD plugin_process_id;
- bool found_starting_plugin_process = false;
- GetWindowThreadProcessId(window, &plugin_process_id);
- for (PluginProcessHostIterator iter; !iter.Done(); ++iter) {
- if (!iter.GetData().handle) {
- found_starting_plugin_process = true;
- continue;
- }
- if (base::GetProcId(iter.GetData().handle) == plugin_process_id) {
- iter->AddWindow(parent);
- return;
- }
- }
-
- if (found_starting_plugin_process) {
- // A plugin process has started but we don't have its handle yet. Since
- // it's most likely the one for this plugin, try a few more times after a
- // delay.
- if (tries > 0) {
- base::MessageLoop::current()->PostDelayedTask(
- FROM_HERE,
- base::Bind(&NotifyPluginProcessHostHelper, window, parent, tries - 1),
- base::TimeDelta::FromMilliseconds(kTryDelayMs));
- return;
- }
- }
-
- // The plugin process might have died in the time to execute the task, don't
- // leak the HWND.
- PostMessage(parent, WM_CLOSE, 0, 0);
-}
-
-// The plugin wrapper window which lives in the browser process has this proc
-// as its window procedure. We only handle the WM_PARENTNOTIFY message sent by
-// windowed plugins for mouse input. This is forwarded off to the wrappers
-// parent which is typically the RVH window which turns on user gesture.
-LRESULT CALLBACK PluginWrapperWindowProc(HWND window, unsigned int message,
- WPARAM wparam, LPARAM lparam) {
- if (message == WM_PARENTNOTIFY) {
- switch (LOWORD(wparam)) {
- case WM_LBUTTONDOWN:
- case WM_RBUTTONDOWN:
- case WM_MBUTTONDOWN:
- ::SendMessage(GetParent(window), message, wparam, lparam);
- return 0;
- default:
- break;
- }
- }
- return ::DefWindowProc(window, message, wparam, lparam);
-}
-
-bool IsPluginWrapperWindow(HWND window) {
- return gfx::GetClassNameW(window) ==
- base::string16(kWrapperNativeWindowClassName);
-}
-
-// Create an intermediate window between the given HWND and its parent.
-HWND ReparentWindow(HWND window, HWND parent) {
- static ATOM atom = 0;
- static HMODULE instance = NULL;
- if (!atom) {
- WNDCLASSEX window_class;
- base::win::InitializeWindowClass(
- kWrapperNativeWindowClassName,
- &base::win::WrappedWindowProc<PluginWrapperWindowProc>,
- CS_DBLCLKS,
- 0,
- 0,
- NULL,
- // xxx reinterpret_cast<HBRUSH>(COLOR_WINDOW+1),
- reinterpret_cast<HBRUSH>(COLOR_GRAYTEXT+1),
- NULL,
- NULL,
- NULL,
- &window_class);
- instance = window_class.hInstance;
- atom = RegisterClassEx(&window_class);
- }
- DCHECK(atom);
-
- HWND new_parent = CreateWindowEx(
- WS_EX_LEFT | WS_EX_LTRREADING | WS_EX_RIGHTSCROLLBAR,
- MAKEINTATOM(atom), 0,
- WS_CHILD | WS_CLIPCHILDREN | WS_CLIPSIBLINGS,
- 0, 0, 0, 0, parent, 0, instance, 0);
- gfx::CheckWindowCreated(new_parent);
- ::SetParent(window, new_parent);
- // How many times we try to find a PluginProcessHost whose process matches
- // the HWND.
- static const int kMaxTries = 5;
- BrowserThread::PostTask(
- BrowserThread::IO,
- FROM_HERE,
- base::Bind(&NotifyPluginProcessHostHelper, window, new_parent,
- kMaxTries));
- return new_parent;
-}
-
-BOOL CALLBACK PaintEnumChildProc(HWND hwnd, LPARAM lparam) {
- if (!PluginServiceImpl::GetInstance()->IsPluginWindow(hwnd))
- return TRUE;
-
- gfx::Rect* rect = reinterpret_cast<gfx::Rect*>(lparam);
- gfx::Rect rect_in_pixels = gfx::win::DIPToScreenRect(*rect);
- static UINT msg = RegisterWindowMessage(kPaintMessageName);
- WPARAM wparam = MAKEWPARAM(rect_in_pixels.x(), rect_in_pixels.y());
- lparam = MAKELPARAM(rect_in_pixels.width(), rect_in_pixels.height());
-
- // SendMessage gets the message across much quicker than PostMessage, since it
- // doesn't get queued. When the plugin thread calls PeekMessage or other
- // Win32 APIs, sent messages are dispatched automatically.
- SendNotifyMessage(hwnd, msg, wparam, lparam);
-
- return TRUE;
-}
-
-// Windows callback for OnDestroy to detach the plugin windows.
-BOOL CALLBACK DetachPluginWindowsCallbackInternal(HWND window, LPARAM param) {
- RenderWidgetHostViewBase::DetachPluginWindowsCallback(window);
- return TRUE;
-}
-
-} // namespace
-
-// static
-void RenderWidgetHostViewBase::DetachPluginWindowsCallback(HWND window) {
- if (PluginServiceImpl::GetInstance()->IsPluginWindow(window) &&
- !IsHungAppWindow(window)) {
- ::ShowWindow(window, SW_HIDE);
- SetParent(window, NULL);
- }
-}
-
-// static
-void RenderWidgetHostViewBase::MovePluginWindowsHelper(
- HWND parent,
- const std::vector<WebPluginGeometry>& moves) {
- if (moves.empty())
- return;
-
- bool oop_plugins = !base::CommandLine::ForCurrentProcess()->HasSwitch(
- switches::kSingleProcess);
-
- HDWP defer_window_pos_info =
- ::BeginDeferWindowPos(static_cast<int>(moves.size()));
-
- if (!defer_window_pos_info) {
- NOTREACHED();
- return;
- }
-
-#if defined(USE_AURA)
- std::vector<RECT> invalidate_rects;
-#endif
-
- for (size_t i = 0; i < moves.size(); ++i) {
- unsigned long flags = 0;
- const WebPluginGeometry& move = moves[i];
- HWND window = move.window;
-
- // As the plugin parent window which lives on the browser UI thread is
- // destroyed asynchronously, it is possible that we have a stale window
- // sent in by the renderer for moving around.
- // Note: get the parent before checking if the window is valid, to avoid a
- // race condition where the window is destroyed after the check but before
- // the GetParent call.
- HWND cur_parent = ::GetParent(window);
- if (!::IsWindow(window))
- continue;
-
- if (!PluginServiceImpl::GetInstance()->IsPluginWindow(window)) {
- // The renderer should only be trying to move plugin windows. However,
- // this may happen as a result of a race condition (i.e. even after the
- // check right above), so we ignore it.
- continue;
- }
-
- if (oop_plugins) {
- if (cur_parent == GetDesktopWindow()) {
- // The plugin window hasn't been parented yet, add an intermediate
- // window that lives on this thread to speed up scrolling. Note this
- // only works with out of process plugins since we depend on
- // PluginProcessHost to destroy the intermediate HWNDs.
- cur_parent = ReparentWindow(window, parent);
- ::ShowWindow(window, SW_SHOW); // Window was created hidden.
- } else if (!IsPluginWrapperWindow(cur_parent)) {
- continue; // Race if plugin process is shutting down.
- }
-
- // We move the intermediate parent window which doesn't result in cross-
- // process synchronous Windows messages.
- window = cur_parent;
- } else {
- if (cur_parent == GetDesktopWindow())
- SetParent(window, parent);
- }
-
- if (move.visible)
- flags |= SWP_SHOWWINDOW;
- else
- flags |= SWP_HIDEWINDOW;
-
-#if defined(USE_AURA)
- if (GpuDataManagerImpl::GetInstance()->CanUseGpuBrowserCompositor()) {
- // Without this flag, Windows repaints the parent area uncovered by this
- // move. However when software compositing is used the clipping region is
- // ignored. Since in Aura the browser chrome could be under the plugin, if
- // if Windows tries to paint it synchronously inside EndDeferWindowsPos
- // then it won't have the data and it will flash white. So instead we
- // manually redraw the plugin.
- // Why not do this for native Windows? Not sure if there are any
- // performance issues with this.
- flags |= SWP_NOREDRAW;
- }
-#endif
-
- if (move.rects_valid) {
- gfx::Rect clip_rect_in_pixel = gfx::win::DIPToScreenRect(move.clip_rect);
- HRGN hrgn = ::CreateRectRgn(clip_rect_in_pixel.x(),
- clip_rect_in_pixel.y(),
- clip_rect_in_pixel.right(),
- clip_rect_in_pixel.bottom());
- gfx::SubtractRectanglesFromRegion(hrgn, move.cutout_rects);
-
- // Note: System will own the hrgn after we call SetWindowRgn,
- // so we don't need to call DeleteObject(hrgn)
- ::SetWindowRgn(window, hrgn,
- !move.clip_rect.IsEmpty() && (flags & SWP_NOREDRAW) == 0);
-
-#if defined(USE_AURA)
- // When using the software compositor, if the clipping rectangle is empty
- // then DeferWindowPos won't redraw the newly uncovered area under the
- // plugin.
- if (clip_rect_in_pixel.IsEmpty() &&
- !GpuDataManagerImpl::GetInstance()->CanUseGpuBrowserCompositor()) {
- RECT r;
- GetClientRect(window, &r);
- MapWindowPoints(window, parent, reinterpret_cast<POINT*>(&r), 2);
- invalidate_rects.push_back(r);
- }
-#endif
- } else {
- flags |= SWP_NOMOVE;
- flags |= SWP_NOSIZE;
- }
-
- gfx::Rect window_rect_in_pixel =
- gfx::win::DIPToScreenRect(move.window_rect);
- defer_window_pos_info = ::DeferWindowPos(defer_window_pos_info,
- window, NULL,
- window_rect_in_pixel.x(),
- window_rect_in_pixel.y(),
- window_rect_in_pixel.width(),
- window_rect_in_pixel.height(),
- flags);
-
- if (!defer_window_pos_info) {
- DCHECK(false) << "DeferWindowPos failed, so all plugin moves ignored.";
- return;
- }
- }
-
- ::EndDeferWindowPos(defer_window_pos_info);
-
-#if defined(USE_AURA)
- if (GpuDataManagerImpl::GetInstance()->CanUseGpuBrowserCompositor()) {
- for (size_t i = 0; i < moves.size(); ++i) {
- const WebPluginGeometry& move = moves[i];
- RECT r;
- GetWindowRect(move.window, &r);
- gfx::Rect gr(r);
- PaintEnumChildProc(move.window, reinterpret_cast<LPARAM>(&gr));
- }
- } else {
- for (size_t i = 0; i < invalidate_rects.size(); ++i) {
- ::RedrawWindow(
- parent, &invalidate_rects[i], NULL,
- // These flags are from WebPluginDelegateImpl::NativeWndProc.
- RDW_INVALIDATE | RDW_ALLCHILDREN | RDW_FRAME | RDW_UPDATENOW);
- }
- }
-#endif
-}
-
-// static
-void RenderWidgetHostViewBase::PaintPluginWindowsHelper(
- HWND parent, const gfx::Rect& damaged_screen_rect) {
- LPARAM lparam = reinterpret_cast<LPARAM>(&damaged_screen_rect);
- EnumChildWindows(parent, PaintEnumChildProc, lparam);
-}
-
-// static
-void RenderWidgetHostViewBase::DetachPluginsHelper(HWND parent) {
- // When a tab is closed all its child plugin windows are destroyed
- // automatically. This happens before plugins get any notification that its
- // instances are tearing down.
- //
- // Plugins like Quicktime assume that their windows will remain valid as long
- // as they have plugin instances active. Quicktime crashes in this case
- // because its windowing code cleans up an internal data structure that the
- // handler for NPP_DestroyStream relies on.
- //
- // The fix is to detach plugin windows from web contents when it is going
- // away. This will prevent the plugin windows from getting destroyed
- // automatically. The detached plugin windows will get cleaned up in proper
- // sequence as part of the usual cleanup when the plugin instance goes away.
- EnumChildWindows(parent, DetachPluginWindowsCallbackInternal, NULL);
-}
-
-#endif // OS_WIN
-
namespace {
// How many microseconds apart input events should be flushed.
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