bcarrella
/
cef
mirror of https://bitbucket.org/chromiumembedded/cef
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity
cef/tests/cefclient/cefclient_osr_widget_win.cpp

710 lines
20 KiB
C++
Raw Blame History

// Copyright (c) 2011 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 "cefclient/cefclient_osr_widget_win.h"
#include <windowsx.h>
#include "include/cef_runnable.h"
#include "cefclient/resource.h"
#include "cefclient/util.h"
// static
CefRefPtr<OSRWindow> OSRWindow::Create(OSRBrowserProvider* browser_provider,
bool transparent) {
ASSERT(browser_provider);
if (!browser_provider)
return NULL;
return new OSRWindow(browser_provider, transparent);
}
// static
CefRefPtr<OSRWindow> OSRWindow::From(
CefRefPtr<ClientHandler::RenderHandler> renderHandler) {
return static_cast<OSRWindow*>(renderHandler.get());
}
bool OSRWindow::CreateWidget(HWND hWndParent, const RECT& rect,
HINSTANCE hInst, LPCTSTR className) {
ASSERT(hWnd_ == NULL && hDC_ == NULL && hRC_ == NULL);
RegisterOSRClass(hInst, className);
hWnd_ = ::CreateWindow(className, 0,
WS_BORDER | WS_CHILD | WS_CLIPCHILDREN | WS_CLIPSIBLINGS | WS_VISIBLE,
rect.left, rect.top, rect.right - rect.left, rect.bottom - rect.top,
hWndParent, 0, hInst, 0);
if (!hWnd_)
return false;
SetWindowLongPtr(hWnd_, GWLP_USERDATA, reinterpret_cast<LONG_PTR>(this));
// Reference released in OnDestroyed().
AddRef();
drop_target_ = DropTargetWin::Create(this, hWnd_);
HRESULT register_res = RegisterDragDrop(hWnd_, drop_target_);
ASSERT(register_res == S_OK);
return true;
}
void OSRWindow::DestroyWidget() {
if (IsWindow(hWnd_))
DestroyWindow(hWnd_);
}
void OSRWindow::OnBeforeClose(CefRefPtr<CefBrowser> browser) {
RevokeDragDrop(hWnd_);
drop_target_ = NULL;
DisableGL();
::DestroyWindow(hWnd_);
}
bool OSRWindow::GetRootScreenRect(CefRefPtr<CefBrowser> browser,
CefRect& rect) {
RECT window_rect = {0};
HWND root_window = GetAncestor(hWnd_, GA_ROOT);
if (::GetWindowRect(root_window, &window_rect)) {
rect = CefRect(window_rect.left,
window_rect.top,
window_rect.right - window_rect.left,
window_rect.bottom - window_rect.top);
return true;
}
return false;
}
bool OSRWindow::GetViewRect(CefRefPtr<CefBrowser> browser,
CefRect& rect) {
RECT clientRect;
if (!::GetClientRect(hWnd_, &clientRect))
return false;
rect.x = rect.y = 0;
rect.width = clientRect.right;
rect.height = clientRect.bottom;
return true;
}
bool OSRWindow::GetScreenPoint(CefRefPtr<CefBrowser> browser,
int viewX,
int viewY,
int& screenX,
int& screenY) {
if (!::IsWindow(hWnd_))
return false;
// Convert the point from view coordinates to actual screen coordinates.
POINT screen_pt = {viewX, viewY};
ClientToScreen(hWnd_, &screen_pt);
screenX = screen_pt.x;
screenY = screen_pt.y;
return true;
}
void OSRWindow::OnPopupShow(CefRefPtr<CefBrowser> browser,
bool show) {
if (!show) {
renderer_.ClearPopupRects();
browser->GetHost()->Invalidate(PET_VIEW);
}
renderer_.OnPopupShow(browser, show);
}
void OSRWindow::OnPopupSize(CefRefPtr<CefBrowser> browser,
const CefRect& rect) {
renderer_.OnPopupSize(browser, rect);
}
void OSRWindow::OnPaint(CefRefPtr<CefBrowser> browser,
PaintElementType type,
const RectList& dirtyRects,
const void* buffer,
int width, int height) {
if (painting_popup_) {
renderer_.OnPaint(browser, type, dirtyRects, buffer, width, height);
return;
}
if (!hDC_)
EnableGL();
wglMakeCurrent(hDC_, hRC_);
renderer_.OnPaint(browser, type, dirtyRects, buffer, width, height);
if (type == PET_VIEW && !renderer_.popup_rect().IsEmpty()) {
painting_popup_ = true;
browser->GetHost()->Invalidate(PET_POPUP);
painting_popup_ = false;
}
renderer_.Render();
SwapBuffers(hDC_);
}
void OSRWindow::OnCursorChange(CefRefPtr<CefBrowser> browser,
CefCursorHandle cursor) {
if (!::IsWindow(hWnd_))
return;
// Change the plugin window's cursor.
SetClassLongPtr(hWnd_, GCLP_HCURSOR,
static_cast<LONG>(reinterpret_cast<LONG_PTR>(cursor)));
SetCursor(cursor);
}
bool OSRWindow::StartDragging(CefRefPtr<CefBrowser> browser,
CefRefPtr<CefDragData> drag_data,
CefRenderHandler::DragOperationsMask allowed_ops,
int x, int y) {
if (!drop_target_)
return false;
current_drag_op_ = DRAG_OPERATION_NONE;
CefBrowserHost::DragOperationsMask result =
drop_target_->StartDragging(browser, drag_data, allowed_ops, x, y);
current_drag_op_ = DRAG_OPERATION_NONE;
POINT pt = {};
GetCursorPos(&pt);
ScreenToClient(hWnd_, &pt);
browser->GetHost()->DragSourceEndedAt(pt.x, pt.y, result);
browser->GetHost()->DragSourceSystemDragEnded();
return true;
}
void OSRWindow::UpdateDragCursor(CefRefPtr<CefBrowser> browser,
CefRenderHandler::DragOperation operation) {
current_drag_op_ = operation;
}
void OSRWindow::Invalidate() {
if (!CefCurrentlyOn(TID_UI)) {
CefPostTask(TID_UI, NewCefRunnableMethod(this, &OSRWindow::Invalidate));
return;
}
// Don't post another task if the previous task is still pending.
if (render_task_pending_)
return;
render_task_pending_ = true;
// Render at 30fps.
static const int kRenderDelay = 1000 / 30;
CefPostDelayedTask(TID_UI, NewCefRunnableMethod(this, &OSRWindow::Render),
kRenderDelay);
}
CefBrowserHost::DragOperationsMask
OSRWindow::OnDragEnter(CefRefPtr<CefDragData> drag_data,
CefMouseEvent ev,
CefBrowserHost::DragOperationsMask effect) {
browser_provider_->GetBrowser()->GetHost()->DragTargetDragEnter(
drag_data, ev, effect);
browser_provider_->GetBrowser()->GetHost()->DragTargetDragOver(ev, effect);
return current_drag_op_;
}
CefBrowserHost::DragOperationsMask OSRWindow::OnDragOver(CefMouseEvent ev,
CefBrowserHost::DragOperationsMask effect) {
browser_provider_->GetBrowser()->GetHost()->DragTargetDragOver(ev, effect);
return current_drag_op_;
}
void OSRWindow::OnDragLeave() {
browser_provider_->GetBrowser()->GetHost()->DragTargetDragLeave();
}
CefBrowserHost::DragOperationsMask
OSRWindow::OnDrop(CefMouseEvent ev,
CefBrowserHost::DragOperationsMask effect) {
browser_provider_->GetBrowser()->GetHost()->DragTargetDragOver(ev, effect);
browser_provider_->GetBrowser()->GetHost()->DragTargetDrop(ev);
return current_drag_op_;
}
OSRWindow::OSRWindow(OSRBrowserProvider* browser_provider, bool transparent)
: renderer_(transparent),
browser_provider_(browser_provider),
hWnd_(NULL),
hDC_(NULL),
hRC_(NULL),
painting_popup_(false),
render_task_pending_(false),
current_drag_op_(DRAG_OPERATION_NONE) {
}
OSRWindow::~OSRWindow() {
DestroyWidget();
}
void OSRWindow::Render() {
ASSERT(CefCurrentlyOn(TID_UI));
if (render_task_pending_)
render_task_pending_ = false;
if (!hDC_)
EnableGL();
wglMakeCurrent(hDC_, hRC_);
renderer_.Render();
SwapBuffers(hDC_);
}
void OSRWindow::EnableGL() {
ASSERT(CefCurrentlyOn(TID_UI));
PIXELFORMATDESCRIPTOR pfd;
int format;
// Get the device context.
hDC_ = GetDC(hWnd_);
// Set the pixel format for the DC.
ZeroMemory(&pfd, sizeof(pfd));
pfd.nSize = sizeof(pfd);
pfd.nVersion = 1;
pfd.dwFlags = PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL | PFD_DOUBLEBUFFER;
pfd.iPixelType = PFD_TYPE_RGBA;
pfd.cColorBits = 24;
pfd.cDepthBits = 16;
pfd.iLayerType = PFD_MAIN_PLANE;
format = ChoosePixelFormat(hDC_, &pfd);
SetPixelFormat(hDC_, format, &pfd);
// Create and enable the render context.
hRC_ = wglCreateContext(hDC_);
wglMakeCurrent(hDC_, hRC_);
renderer_.Initialize();
}
void OSRWindow::DisableGL() {
ASSERT(CefCurrentlyOn(TID_UI));
if (!hDC_)
return;
renderer_.Cleanup();
if (IsWindow(hWnd_)) {
wglMakeCurrent(NULL, NULL);
wglDeleteContext(hRC_);
ReleaseDC(hWnd_, hDC_);
}
hDC_ = NULL;
hRC_ = NULL;
}
void OSRWindow::OnDestroyed() {
SetWindowLongPtr(hWnd_, GWLP_USERDATA, 0L);
hWnd_ = NULL;
Release();
}
ATOM OSRWindow::RegisterOSRClass(HINSTANCE hInstance, LPCTSTR className) {
WNDCLASSEX wcex;
wcex.cbSize = sizeof(WNDCLASSEX);
wcex.style = CS_OWNDC;
wcex.lpfnWndProc = &OSRWindow::WndProc;
wcex.cbClsExtra = 0;
wcex.cbWndExtra = 0;
wcex.hInstance = hInstance;
wcex.hIcon = NULL;
wcex.hCursor = LoadCursor(NULL, IDC_ARROW);
wcex.hbrBackground = (HBRUSH)(COLOR_WINDOW + 1);
wcex.lpszMenuName = NULL;
wcex.lpszClassName = className;
wcex.hIconSm = LoadIcon(wcex.hInstance, MAKEINTRESOURCE(IDI_SMALL));
return RegisterClassEx(&wcex);
}
bool OSRWindow::isKeyDown(WPARAM wparam) {
return (GetKeyState(wparam) & 0x8000) != 0;
}
int OSRWindow::GetCefMouseModifiers(WPARAM wparam) {
int modifiers = 0;
if (wparam & MK_CONTROL)
modifiers |= EVENTFLAG_CONTROL_DOWN;
if (wparam & MK_SHIFT)
modifiers |= EVENTFLAG_SHIFT_DOWN;
if (isKeyDown(VK_MENU))
modifiers |= EVENTFLAG_ALT_DOWN;
if (wparam & MK_LBUTTON)
modifiers |= EVENTFLAG_LEFT_MOUSE_BUTTON;
if (wparam & MK_MBUTTON)
modifiers |= EVENTFLAG_MIDDLE_MOUSE_BUTTON;
if (wparam & MK_RBUTTON)
modifiers |= EVENTFLAG_RIGHT_MOUSE_BUTTON;
// Low bit set from GetKeyState indicates "toggled".
if (::GetKeyState(VK_NUMLOCK) & 1)
modifiers |= EVENTFLAG_NUM_LOCK_ON;
if (::GetKeyState(VK_CAPITAL) & 1)
modifiers |= EVENTFLAG_CAPS_LOCK_ON;
return modifiers;
}
int OSRWindow::GetCefKeyboardModifiers(WPARAM wparam, LPARAM lparam) {
int modifiers = 0;
if (isKeyDown(VK_SHIFT))
modifiers |= EVENTFLAG_SHIFT_DOWN;
if (isKeyDown(VK_CONTROL))
modifiers |= EVENTFLAG_CONTROL_DOWN;
if (isKeyDown(VK_MENU))
modifiers |= EVENTFLAG_ALT_DOWN;
// Low bit set from GetKeyState indicates "toggled".
if (::GetKeyState(VK_NUMLOCK) & 1)
modifiers |= EVENTFLAG_NUM_LOCK_ON;
if (::GetKeyState(VK_CAPITAL) & 1)
modifiers |= EVENTFLAG_CAPS_LOCK_ON;
switch (wparam) {
case VK_RETURN:
if ((lparam >> 16) & KF_EXTENDED)
modifiers |= EVENTFLAG_IS_KEY_PAD;
break;
case VK_INSERT:
case VK_DELETE:
case VK_HOME:
case VK_END:
case VK_PRIOR:
case VK_NEXT:
case VK_UP:
case VK_DOWN:
case VK_LEFT:
case VK_RIGHT:
if (!((lparam >> 16) & KF_EXTENDED))
modifiers |= EVENTFLAG_IS_KEY_PAD;
break;
case VK_NUMLOCK:
case VK_NUMPAD0:
case VK_NUMPAD1:
case VK_NUMPAD2:
case VK_NUMPAD3:
case VK_NUMPAD4:
case VK_NUMPAD5:
case VK_NUMPAD6:
case VK_NUMPAD7:
case VK_NUMPAD8:
case VK_NUMPAD9:
case VK_DIVIDE:
case VK_MULTIPLY:
case VK_SUBTRACT:
case VK_ADD:
case VK_DECIMAL:
case VK_CLEAR:
modifiers |= EVENTFLAG_IS_KEY_PAD;
break;
case VK_SHIFT:
if (isKeyDown(VK_LSHIFT))
modifiers |= EVENTFLAG_IS_LEFT;
else if (isKeyDown(VK_RSHIFT))
modifiers |= EVENTFLAG_IS_RIGHT;
break;
case VK_CONTROL:
if (isKeyDown(VK_LCONTROL))
modifiers |= EVENTFLAG_IS_LEFT;
else if (isKeyDown(VK_RCONTROL))
modifiers |= EVENTFLAG_IS_RIGHT;
break;
case VK_MENU:
if (isKeyDown(VK_LMENU))
modifiers |= EVENTFLAG_IS_LEFT;
else if (isKeyDown(VK_RMENU))
modifiers |= EVENTFLAG_IS_RIGHT;
break;
case VK_LWIN:
modifiers |= EVENTFLAG_IS_LEFT;
break;
case VK_RWIN:
modifiers |= EVENTFLAG_IS_RIGHT;
break;
}
return modifiers;
}
bool OSRWindow::IsOverPopupWidget(int x, int y) const {
const CefRect& rc = renderer_.popup_rect();
int popup_right = rc.x + rc.width;
int popup_bottom = rc.y + rc.height;
return (x >= rc.x) && (x < popup_right) &&
(y >= rc.y) && (y < popup_bottom);
}
int OSRWindow::GetPopupXOffset() const {
return renderer_.original_popup_rect().x - renderer_.popup_rect().x;
}
int OSRWindow::GetPopupYOffset() const {
return renderer_.original_popup_rect().y - renderer_.popup_rect().y;
}
void OSRWindow::ApplyPopupOffset(int& x, int& y) const {
if (IsOverPopupWidget(x, y)) {
x += GetPopupXOffset();
y += GetPopupYOffset();
}
}
// Plugin window procedure.
// static
LRESULT CALLBACK OSRWindow::WndProc(HWND hWnd, UINT message,
WPARAM wParam, LPARAM lParam) {
static POINT lastMousePos, curMousePos;
static bool mouseRotation = false;
static bool mouseTracking = false;
static int lastClickX = 0;
static int lastClickY = 0;
static CefBrowserHost::MouseButtonType lastClickButton = MBT_LEFT;
static int gLastClickCount = 0;
static double gLastClickTime = 0;
static bool gLastMouseDownOnView = false;
OSRWindow* window =
reinterpret_cast<OSRWindow*>(GetWindowLongPtr(hWnd, GWLP_USERDATA));
CefRefPtr<CefBrowserHost> browser;
if (window && window->browser_provider_->GetBrowser().get())
browser = window->browser_provider_->GetBrowser()->GetHost();
LONG currentTime = 0;
bool cancelPreviousClick = false;
if (message == WM_LBUTTONDOWN || message == WM_RBUTTONDOWN ||
message == WM_MBUTTONDOWN || message == WM_MOUSEMOVE ||
message == WM_MOUSELEAVE) {
currentTime = GetMessageTime();
int x = GET_X_LPARAM(lParam);
int y = GET_Y_LPARAM(lParam);
cancelPreviousClick =
(abs(lastClickX - x) > (GetSystemMetrics(SM_CXDOUBLECLK) / 2))
|| (abs(lastClickY - y) > (GetSystemMetrics(SM_CYDOUBLECLK) / 2))
|| ((currentTime - gLastClickTime) > GetDoubleClickTime());
if (cancelPreviousClick &&
(message == WM_MOUSEMOVE || message == WM_MOUSELEAVE)) {
gLastClickCount = 0;
lastClickX = 0;
lastClickY = 0;
gLastClickTime = 0;
}
}
switch (message) {
case WM_DESTROY:
if (window)
window->OnDestroyed();
return 0;
case WM_LBUTTONDOWN:
case WM_RBUTTONDOWN:
case WM_MBUTTONDOWN: {
SetCapture(hWnd);
SetFocus(hWnd);
int x = GET_X_LPARAM(lParam);
int y = GET_Y_LPARAM(lParam);
if (wParam & MK_SHIFT) {
// Start rotation effect.
lastMousePos.x = curMousePos.x = x;
lastMousePos.y = curMousePos.y = y;
mouseRotation = true;
} else {
CefBrowserHost::MouseButtonType btnType =
(message == WM_LBUTTONDOWN ? MBT_LEFT : (
message == WM_RBUTTONDOWN ? MBT_RIGHT : MBT_MIDDLE));
if (!cancelPreviousClick && (btnType == lastClickButton)) {
++gLastClickCount;
} else {
gLastClickCount = 1;
lastClickX = x;
lastClickY = y;
}
gLastClickTime = currentTime;
lastClickButton = btnType;
if (browser.get()) {
CefMouseEvent mouse_event;
mouse_event.x = x;
mouse_event.y = y;
gLastMouseDownOnView = !window->IsOverPopupWidget(x, y);
window->ApplyPopupOffset(mouse_event.x, mouse_event.y);
mouse_event.modifiers = GetCefMouseModifiers(wParam);
browser->SendMouseClickEvent(mouse_event, btnType, false,
gLastClickCount);
}
}
break;
}
case WM_LBUTTONUP:
case WM_RBUTTONUP:
case WM_MBUTTONUP:
if (GetCapture() == hWnd)
ReleaseCapture();
if (mouseRotation) {
// End rotation effect.
mouseRotation = false;
window->renderer_.SetSpin(0, 0);
window->Invalidate();
} else {
int x = GET_X_LPARAM(lParam);
int y = GET_Y_LPARAM(lParam);
CefBrowserHost::MouseButtonType btnType =
(message == WM_LBUTTONUP ? MBT_LEFT : (
message == WM_RBUTTONUP ? MBT_RIGHT : MBT_MIDDLE));
if (browser.get()) {
CefMouseEvent mouse_event;
mouse_event.x = x;
mouse_event.y = y;
if (gLastMouseDownOnView &&
window->IsOverPopupWidget(x, y) &&
(window->GetPopupXOffset() || window->GetPopupYOffset())) {
break;
}
window->ApplyPopupOffset(mouse_event.x, mouse_event.y);
mouse_event.modifiers = GetCefMouseModifiers(wParam);
browser->SendMouseClickEvent(mouse_event, btnType, true,
gLastClickCount);
}
}
break;
case WM_MOUSEMOVE: {
int x = GET_X_LPARAM(lParam);
int y = GET_Y_LPARAM(lParam);
if (mouseRotation) {
// Apply rotation effect.
curMousePos.x = x;
curMousePos.y = y;
window->renderer_.IncrementSpin((curMousePos.x - lastMousePos.x),
(curMousePos.y - lastMousePos.y));
lastMousePos.x = curMousePos.x;
lastMousePos.y = curMousePos.y;
window->Invalidate();
} else {
if (!mouseTracking) {
// Start tracking mouse leave. Required for the WM_MOUSELEAVE event to
// be generated.
TRACKMOUSEEVENT tme;
tme.cbSize = sizeof(TRACKMOUSEEVENT);
tme.dwFlags = TME_LEAVE;
tme.hwndTrack = hWnd;
TrackMouseEvent(&tme);
mouseTracking = true;
}
if (browser.get()) {
CefMouseEvent mouse_event;
mouse_event.x = x;
mouse_event.y = y;
window->ApplyPopupOffset(mouse_event.x, mouse_event.y);
mouse_event.modifiers = GetCefMouseModifiers(wParam);
browser->SendMouseMoveEvent(mouse_event, false);
}
}
break;
}
case WM_MOUSELEAVE:
if (mouseTracking) {
// Stop tracking mouse leave.
TRACKMOUSEEVENT tme;
tme.cbSize = sizeof(TRACKMOUSEEVENT);
tme.dwFlags = TME_LEAVE & TME_CANCEL;
tme.hwndTrack = hWnd;
TrackMouseEvent(&tme);
mouseTracking = false;
}
if (browser.get()) {
CefMouseEvent mouse_event;
mouse_event.x = 0;
mouse_event.y = 0;
mouse_event.modifiers = GetCefMouseModifiers(wParam);
browser->SendMouseMoveEvent(mouse_event, true);
}
break;
case WM_MOUSEWHEEL:
if (browser.get()) {
POINT screen_point = {GET_X_LPARAM(lParam), GET_Y_LPARAM(lParam)};
HWND scrolled_wnd = ::WindowFromPoint(screen_point);
if (scrolled_wnd != hWnd) {
break;
}
ScreenToClient(hWnd, &screen_point);
int delta = GET_WHEEL_DELTA_WPARAM(wParam);
CefMouseEvent mouse_event;
mouse_event.x = screen_point.x;
mouse_event.y = screen_point.y;
window->ApplyPopupOffset(mouse_event.x, mouse_event.y);
mouse_event.modifiers = GetCefMouseModifiers(wParam);
browser->SendMouseWheelEvent(mouse_event,
isKeyDown(VK_SHIFT) ? delta : 0,
!isKeyDown(VK_SHIFT) ? delta : 0);
}
break;
case WM_SIZE:
if (browser.get())
browser->WasResized();
break;
case WM_SETFOCUS:
case WM_KILLFOCUS:
if (browser.get())
browser->SendFocusEvent(message == WM_SETFOCUS);
break;
case WM_CAPTURECHANGED:
case WM_CANCELMODE:
if (!mouseRotation) {
if (browser.get())
browser->SendCaptureLostEvent();
}
break;
case WM_SYSCHAR:
case WM_SYSKEYDOWN:
case WM_SYSKEYUP:
case WM_KEYDOWN:
case WM_KEYUP:
case WM_CHAR: {
CefKeyEvent event;
event.windows_key_code = wParam;
event.native_key_code = lParam;
event.is_system_key = message == WM_SYSCHAR ||
message == WM_SYSKEYDOWN ||
message == WM_SYSKEYUP;
if (message == WM_KEYDOWN || message == WM_SYSKEYDOWN)
event.type = KEYEVENT_RAWKEYDOWN;
else if (message == WM_KEYUP || message == WM_SYSKEYUP)
event.type = KEYEVENT_KEYUP;
else
event.type = KEYEVENT_CHAR;
event.modifiers = GetCefKeyboardModifiers(wParam, lParam);
if (browser.get())
browser->SendKeyEvent(event);
break;
}
case WM_PAINT: {
PAINTSTRUCT ps;
RECT rc;
BeginPaint(hWnd, &ps);
rc = ps.rcPaint;
EndPaint(hWnd, &ps);
if (browser.get())
browser->Invalidate(PET_VIEW);
return 0;
}
case WM_ERASEBKGND:
return 0;
}
return DefWindowProc(hWnd, message, wParam, lParam);
}
Reference in New Issue View Git Blame Copy Permalink