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ViewComponent.cpp
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1057 lines (975 loc) · 37.8 KB
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// Copyright (C) Microsoft Corporation. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "stdafx.h"
#include "ViewComponent.h"
#include "DCompTargetImpl.h"
#include "AppStartPage.h"
#include "DropTarget.h"
#include <d2d1helper.h>
#include <sstream>
#include <windows.ui.composition.interop.h>
#include <windowsx.h>
#include "CheckFailure.h"
using namespace Microsoft::WRL;
namespace numerics = winrt::Windows::Foundation::Numerics;
static D2D1_MATRIX_4X4_F Convert3x2MatrixTo4x4Matrix(D2D1_MATRIX_3X2_F* matrix3x2);
static void UpdateDocumentTitle(AppWindow* appWindow, const std::wstring& prefix,
double scale) {
std::wstring docTitle = appWindow->GetDocumentTitle();
// remove last prefix if exists
size_t pos = docTitle.rfind(prefix);
if (pos != std::wstring::npos)
{
docTitle = docTitle.substr(0, pos);
}
docTitle += prefix + std::to_wstring(int(scale * 100)) + L"%)";
appWindow->SetDocumentTitle(docTitle.c_str());
};
ViewComponent::ViewComponent(
AppWindow* appWindow, IDCompositionDevice* dcompDevice,
winrtComp::Compositor wincompCompositor, bool isDcompTargetMode)
: m_appWindow(appWindow), m_controller(appWindow->GetWebViewController()),
m_webView(appWindow->GetWebView()), m_dcompDevice(dcompDevice),
m_wincompCompositor(wincompCompositor), m_isDcompTargetMode(isDcompTargetMode)
{
//! [ZoomFactorChanged]
// Register a handler for the ZoomFactorChanged event.
// This handler just announces the new level of zoom on the window's title bar.
CHECK_FAILURE(m_controller->add_ZoomFactorChanged(
Callback<ICoreWebView2ZoomFactorChangedEventHandler>(
[this](ICoreWebView2Controller* sender, IUnknown* args) -> HRESULT {
double zoomFactor;
CHECK_FAILURE(sender->get_ZoomFactor(&zoomFactor));
UpdateDocumentTitle(m_appWindow, L" (Zoom: ", zoomFactor);
return S_OK;
})
.Get(),
&m_zoomFactorChangedToken));
//! [ZoomFactorChanged]
CHECK_FAILURE(m_webView->add_NavigationStarting(
Callback<ICoreWebView2NavigationStartingEventHandler>(
[this](ICoreWebView2* sender, ICoreWebView2NavigationStartingEventArgs* args)
-> HRESULT {
wil::unique_cotaskmem_string newUri;
CHECK_FAILURE(args->get_Uri(&newUri));
wil::unique_cotaskmem_string oldUri;
CHECK_FAILURE(m_webView->get_Source(&oldUri));
std::wstring appStartPage = AppStartPage::GetUri(m_appWindow);
size_t queryIndex = appStartPage.find('?');
if (appStartPage.compare(0, queryIndex, newUri.get(), queryIndex) == 0)
{
// When navigating to the app start page, make the background of
// the html be the WebView2 logo. We do this by making
// the background color transparent so the WebView2 logo in the AppWindow
// shows through.
COREWEBVIEW2_COLOR transparentColor = { 0, 255, 255, 255 };
wil::com_ptr<ICoreWebView2Controller2> controller2 =
m_controller.query<ICoreWebView2Controller2>();
// Save the previous background color to restore when navigating away.
CHECK_FAILURE(controller2->get_DefaultBackgroundColor(&m_webViewColor));
CHECK_FAILURE(controller2->put_DefaultBackgroundColor(transparentColor));
}
else if (appStartPage.compare(0, queryIndex, oldUri.get(), queryIndex) == 0)
{
// When navigating away from the app start page, set the background color
// back to the previous value. If the user changed the background color,
// m_webViewColor will have changed.
wil::com_ptr<ICoreWebView2Controller2> controller2 =
m_controller.query<ICoreWebView2Controller2>();
CHECK_FAILURE(controller2->put_DefaultBackgroundColor(m_webViewColor));
}
return S_OK;
}).Get(), &m_navigationStartingToken));
m_controller3 = m_controller.try_query<ICoreWebView2Controller3>();
if (m_controller3)
{
//! [RasterizationScaleChanged]
CHECK_FAILURE(m_controller3->add_RasterizationScaleChanged(
Callback<ICoreWebView2RasterizationScaleChangedEventHandler>(
[this](ICoreWebView2Controller* sender, IUnknown* args) -> HRESULT {
double rasterizationScale;
CHECK_FAILURE(m_controller3->get_RasterizationScale(&rasterizationScale));
UpdateDocumentTitle(
m_appWindow, L" (RasterizationScale: ", rasterizationScale);
return S_OK;
})
.Get(), &m_rasterizationScaleChangedToken));
//! [RasterizationScaleChanged]
}
// Set up compositor if we're running in windowless mode
m_compositionController = m_controller.try_query<ICoreWebView2CompositionController>();
if (m_compositionController)
{
if (m_dcompDevice)
{
//! [SetRootVisualTarget]
// Set the host app visual that the WebView will connect its visual
// tree to.
BuildDCompTreeUsingVisual();
if (m_isDcompTargetMode)
{
if (!m_dcompTarget)
{
m_dcompTarget = Make<DCompTargetImpl>(this);
}
CHECK_FAILURE(
m_compositionController->put_RootVisualTarget(m_dcompTarget.get()));
}
else
{
CHECK_FAILURE(
m_compositionController->put_RootVisualTarget(m_dcompWebViewVisual.get()));
}
CHECK_FAILURE(m_dcompDevice->Commit());
//! [SetRootVisualTarget]
}
else if (m_wincompCompositor)
{
BuildWinCompVisualTree();
CHECK_FAILURE(m_compositionController->put_RootVisualTarget(m_wincompWebViewVisual.as<IUnknown>().get()));
}
else
{
FAIL_FAST();
}
//! [CursorChanged]
// Register a handler for the CursorChanged event.
CHECK_FAILURE(m_compositionController->add_CursorChanged(
Callback<ICoreWebView2CursorChangedEventHandler>(
[this](ICoreWebView2CompositionController* sender, IUnknown* args)
-> HRESULT {
HRESULT hr = S_OK;
HCURSOR cursor;
if (!m_useCursorId)
{
CHECK_FAILURE(sender->get_Cursor(&cursor));
}
else
{
//! [SystemCursorId]
UINT32 cursorId;
CHECK_FAILURE(m_compositionController->get_SystemCursorId(&cursorId));
cursor = ::LoadCursor(nullptr, MAKEINTRESOURCE(cursorId));
if (cursor == nullptr)
{
hr = HRESULT_FROM_WIN32(GetLastError());
}
//! [SystemCursorId]
}
if (SUCCEEDED(hr))
{
SetClassLongPtr(
m_appWindow->GetMainWindow(), GCLP_HCURSOR, (LONG_PTR)cursor);
}
return hr;
})
.Get(),
&m_cursorChangedToken));
//! [CursorChanged]
wil::com_ptr<ICoreWebView2CompositionController3> compositionController3 =
m_controller.query<ICoreWebView2CompositionController3>();
m_dropTarget = Make<DropTarget>();
m_dropTarget->Init(
m_appWindow->GetMainWindow(), this, compositionController3.get());
}
else if (m_dcompDevice || m_wincompCompositor)
{
FAIL_FAST();
}
m_webView2_9 = m_webView.try_query<ICoreWebView2_9>();
if (m_webView2_9)
{
SetDefaultDownloadDialogPosition();
}
ResizeWebView();
UpdateDpiAndTextScale();
}
bool ViewComponent::HandleWindowMessage(
HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam, LRESULT* result)
{
if (message == WM_COMMAND)
{
switch (LOWORD(wParam))
{
case IDM_TOGGLE_VISIBILITY:
ToggleVisibility();
return true;
case IDM_SUSPEND:
Suspend();
return true;
case IDM_RESUME:
Resume();
return true;
case IDM_TOGGLE_MEMORY_USAGE_TARGET_LEVEL:
ToggleMemoryUsageTargetLevel();
return true;
case IDM_BACKGROUNDCOLOR_WHITE:
SetBackgroundColor(RGB(255, 255, 255), false);
return true;
case IDM_BACKGROUNDCOLOR_RED:
SetBackgroundColor(RGB(255, 0, 0), false);
return true;
case IDM_BACKGROUNDCOLOR_BLUE:
SetBackgroundColor(RGB(0, 0, 255), false);
return true;
case IDM_BACKGROUNDCOLOR_TRANSPARENT:
SetBackgroundColor(RGB(255, 255, 255), true);
return true;
case IDM_ZOOM_05:
SetZoomFactor(0.5f);
return true;
case IDM_ZOOM_10:
SetZoomFactor(1.0f);
return true;
case IDM_ZOOM_20:
SetZoomFactor(2.0f);
return true;
case IDM_SIZE_25:
SetSizeRatio(0.5f);
return true;
case IDM_SIZE_50:
SetSizeRatio(0.7071f);
return true;
case IDM_SIZE_75:
SetSizeRatio(0.866f);
return true;
case IDM_SIZE_100:
SetSizeRatio(1.0f);
return true;
case IDM_TRANSFORM_NONE:
SetTransform(TransformType::kIdentity);
return true;
case IDM_TRANSFORM_ROTATE_30DEG:
SetTransform(TransformType::kRotate30Deg);
return true;
case IDM_TRANSFORM_ROTATE_60DEG_DIAG:
SetTransform(TransformType::kRotate60DegDiagonally);
return true;
case IDM_RASTERIZATION_SCALE_DEFAULT:
CHECK_FEATURE_RETURN(m_controller3);
CHECK_FAILURE(m_controller3->put_ShouldDetectMonitorScaleChanges(TRUE));
return true;
case IDM_RASTERIZATION_SCALE_50:
CHECK_FEATURE_RETURN(m_controller3);
SetRasterizationScale(0.5f);
return true;
case IDM_RASTERIZATION_SCALE_100:
CHECK_FEATURE_RETURN(m_controller3);
SetRasterizationScale(1.0f);
return true;
case IDM_RASTERIZATION_SCALE_125:
CHECK_FEATURE_RETURN(m_controller3);
SetRasterizationScale(1.25f);
return true;
case IDM_RASTERIZATION_SCALE_150:
CHECK_FEATURE_RETURN(m_controller3);
SetRasterizationScale(1.5f);
return true;
case IDM_BOUNDS_MODE_RAW_PIXELS:
CHECK_FEATURE_RETURN(m_controller3);
SetBoundsMode(COREWEBVIEW2_BOUNDS_MODE_USE_RAW_PIXELS);
return true;
case IDM_BOUNDS_MODE_VIEW_PIXELS:
CHECK_FEATURE_RETURN(m_controller3);
SetBoundsMode(COREWEBVIEW2_BOUNDS_MODE_USE_RASTERIZATION_SCALE);
return true;
case IDM_SCALE_50:
SetScale(0.5f);
return true;
case IDM_SCALE_100:
SetScale(1.0f);
return true;
case IDM_SCALE_125:
SetScale(1.25f);
return true;
case IDM_SCALE_150:
SetScale(1.5f);
return true;
case IDM_GET_WEBVIEW_BOUNDS:
ShowWebViewBounds();
return true;
case IDM_GET_WEBVIEW_ZOOM:
ShowWebViewZoom();
return true;
case IDM_TOGGLE_CURSOR_HANDLING:
m_useCursorId = !m_useCursorId;
return true;
case IDM_TOGGLE_DEFAULT_DOWNLOAD_DIALOG:
ToggleDefaultDownloadDialog();
return true;
case IDM_TOGGLE_DOWNLOADS_BUTTON:
ToggleDownloadsButton();
return true;
case IDM_AUTO_PREFERRED_COLOR_SCHEME:
SetPreferredColorScheme(
COREWEBVIEW2_PREFERRED_COLOR_SCHEME_AUTO);
return true;
case IDM_LIGHT_PREFERRED_COLOR_SCHEME:
SetPreferredColorScheme(
COREWEBVIEW2_PREFERRED_COLOR_SCHEME_LIGHT);
return true;
case IDM_DARK_PREFERRED_COLOR_SCHEME:
SetPreferredColorScheme(
COREWEBVIEW2_PREFERRED_COLOR_SCHEME_DARK);
return true;
}
}
//! [ToggleIsVisibleOnMinimize]
if (message == WM_SIZE)
{
if (wParam == SIZE_MINIMIZED)
{
// Hide the webview when the app window is minimized.
m_controller->put_IsVisible(FALSE);
Suspend();
}
else if (wParam == SIZE_RESTORED)
{
// When the app window is restored, show the webview
// (unless the user has toggle visibility off).
if (m_isVisible)
{
Resume();
m_controller->put_IsVisible(TRUE);
}
}
}
//! [ToggleIsVisibleOnMinimize]
if ((message >= WM_MOUSEFIRST && message <= WM_MOUSELAST) || message == WM_MOUSELEAVE)
{
return OnMouseMessage(message, wParam, lParam);
}
else if (
message == WM_POINTERACTIVATE || message == WM_POINTERDOWN ||
message == WM_POINTERENTER || message == WM_POINTERLEAVE || message == WM_POINTERUP ||
message == WM_POINTERUPDATE)
{
return OnPointerMessage(message, wParam, lParam);
}
//! [NotifyParentWindowPositionChanged]
if (message == WM_MOVE || message == WM_MOVING)
{
m_controller->NotifyParentWindowPositionChanged();
return true;
}
//! [NotifyParentWindowPositionChanged]
return false;
}
//! [SetPreferredColorScheme]
void ViewComponent::SetPreferredColorScheme(COREWEBVIEW2_PREFERRED_COLOR_SCHEME value)
{
wil::com_ptr<ICoreWebView2_13> webView2_13;
webView2_13 = m_webView.try_query<ICoreWebView2_13>();
if (webView2_13)
{
wil::com_ptr<ICoreWebView2Profile> profile;
CHECK_FAILURE(webView2_13->get_Profile(&profile));
profile->put_PreferredColorScheme(value);
}
}
//! [SetPreferredColorScheme]
void ViewComponent::UpdateDpiAndTextScale()
{
if (m_controller3)
{
BOOL isWebViewDetectingScaleChanges;
CHECK_FAILURE(m_controller3->get_ShouldDetectMonitorScaleChanges(
&isWebViewDetectingScaleChanges));
if (!isWebViewDetectingScaleChanges)
{
SetRasterizationScale(m_webviewAdditionalRasterizationScale);
}
}
}
//! [ToggleIsVisible]
void ViewComponent::ToggleVisibility()
{
BOOL visible;
m_controller->get_IsVisible(&visible);
m_isVisible = !visible;
m_controller->put_IsVisible(m_isVisible);
}
//! [ToggleIsVisible]
//! [Suspend]
void ViewComponent::Suspend()
{
wil::com_ptr<ICoreWebView2_3> webView;
webView = m_webView.try_query<ICoreWebView2_3>();
CHECK_FEATURE_RETURN_EMPTY(webView);
HRESULT hr = webView->TrySuspend(
Callback<ICoreWebView2TrySuspendCompletedHandler>(
[this](HRESULT errorCode, BOOL isSuccessful) -> HRESULT {
if ((errorCode != S_OK) || !isSuccessful)
{
std::wstringstream formattedMessage;
formattedMessage << "TrySuspend result (0x" << std::hex << errorCode
<< ") " << (isSuccessful ? "succeeded" : "failed");
m_appWindow->AsyncMessageBox(
std::move(formattedMessage.str()), L"TrySuspend result");
}
return S_OK;
})
.Get());
if (FAILED(hr))
ShowFailure(hr, L"Call to TryFreeze failed");
}
//! [Suspend]
//! [MemoryUsageTargetLevel]
void ViewComponent::ToggleMemoryUsageTargetLevel()
{
wil::com_ptr<ICoreWebView2_19> webView;
webView = m_webView.try_query<ICoreWebView2_19>();
CHECK_FEATURE_RETURN_EMPTY(webView);
COREWEBVIEW2_MEMORY_USAGE_TARGET_LEVEL memory_target_level =
COREWEBVIEW2_MEMORY_USAGE_TARGET_LEVEL_NORMAL;
CHECK_FAILURE(webView->get_MemoryUsageTargetLevel(&memory_target_level));
memory_target_level = (memory_target_level == COREWEBVIEW2_MEMORY_USAGE_TARGET_LEVEL_LOW)
? COREWEBVIEW2_MEMORY_USAGE_TARGET_LEVEL_NORMAL
: COREWEBVIEW2_MEMORY_USAGE_TARGET_LEVEL_LOW;
CHECK_FAILURE(webView->put_MemoryUsageTargetLevel(memory_target_level));
MessageBox(
nullptr,
(memory_target_level == COREWEBVIEW2_MEMORY_USAGE_TARGET_LEVEL_LOW)
? L"MemoryUsageTargetLevel is set to LOW."
: L"MemoryUsageTargetLevel is set to NORMAL.",
L"MemoryUsageTargetLevel change", MB_OK);
}
//! [MemoryUsageTargetLevel]
//! [Resume]
void ViewComponent::Resume()
{
wil::com_ptr<ICoreWebView2_3> webView;
webView = m_webView.try_query<ICoreWebView2_3>();
CHECK_FEATURE_RETURN_EMPTY(webView);
webView->Resume();
}
//! [Resume]
//! [DefaultBackgroundColor]
void ViewComponent::SetBackgroundColor(COLORREF color, bool transparent)
{
m_webViewColor.R = GetRValue(color);
m_webViewColor.G = GetGValue(color);
m_webViewColor.B = GetBValue(color);
m_webViewColor.A = transparent ? 0 : 255;
wil::com_ptr<ICoreWebView2Controller2> controller2 =
m_controller.query<ICoreWebView2Controller2>();
controller2->put_DefaultBackgroundColor(m_webViewColor);
}
//! [DefaultBackgroundColor]
void ViewComponent::SetSizeRatio(float ratio)
{
m_webViewRatio = ratio;
ResizeWebView();
}
void ViewComponent::SetZoomFactor(float zoom)
{
m_webViewZoomFactor = zoom;
m_controller->put_ZoomFactor(zoom);
}
void ViewComponent::SetBounds(RECT bounds)
{
m_webViewBounds = bounds;
ResizeWebView();
}
RECT ViewComponent::GetBounds()
{
return m_webViewBounds;
}
void ViewComponent::OffsetPointToWebView(LPPOINT point)
{
::ScreenToClient(m_appWindow->GetMainWindow(), point);
point->x -= m_webViewBounds.left;
point->y -= m_webViewBounds.top;
}
//! [SetBoundsAndZoomFactor]
void ViewComponent::SetScale(float scale)
{
RECT bounds;
CHECK_FAILURE(m_controller->get_Bounds(&bounds));
double scaleChange = scale / m_webViewScale;
bounds.bottom = LONG(
(bounds.bottom - bounds.top) * scaleChange + bounds.top);
bounds.right = LONG(
(bounds.right - bounds.left) * scaleChange + bounds.left);
m_webViewScale = scale;
m_controller->SetBoundsAndZoomFactor(bounds, scale);
}
//! [SetBoundsAndZoomFactor]
//! [ResizeWebView]
// Update the bounds of the WebView window to fit available space.
void ViewComponent::ResizeWebView()
{
SIZE webViewSize = {
LONG((m_webViewBounds.right - m_webViewBounds.left) * m_webViewRatio * m_webViewScale),
LONG((m_webViewBounds.bottom - m_webViewBounds.top) * m_webViewRatio * m_webViewScale) };
RECT desiredBounds = m_webViewBounds;
desiredBounds.bottom = LONG(
webViewSize.cy + m_webViewBounds.top);
desiredBounds.right = LONG(
webViewSize.cx + m_webViewBounds.left);
m_controller->put_Bounds(desiredBounds);
if (m_compositionController)
{
POINT webViewOffset = {m_webViewBounds.left, m_webViewBounds.top};
if (m_dcompDevice)
{
CHECK_FAILURE(m_dcompRootVisual->SetOffsetX(float(webViewOffset.x)));
CHECK_FAILURE(m_dcompRootVisual->SetOffsetY(float(webViewOffset.y)));
CHECK_FAILURE(m_dcompRootVisual->SetClip(
{0, 0, float(webViewSize.cx), float(webViewSize.cy)}));
CHECK_FAILURE(m_dcompDevice->Commit());
}
else if (m_wincompCompositor)
{
if (m_wincompRootVisual != nullptr)
{
numerics::float2 size = {static_cast<float>(webViewSize.cx),
static_cast<float>(webViewSize.cy)};
m_wincompRootVisual.Size(size);
numerics::float3 offset = {static_cast<float>(webViewOffset.x),
static_cast<float>(webViewOffset.y), 0.0f};
m_wincompRootVisual.Offset(offset);
winrtComp::IInsetClip insetClip = m_wincompCompositor.CreateInsetClip();
m_wincompRootVisual.Clip(insetClip.as<winrtComp::CompositionClip>());
}
}
}
}
//! [ResizeWebView]
// Show the current bounds of the WebView.
void ViewComponent::ShowWebViewBounds()
{
RECT bounds;
HRESULT result = m_controller->get_Bounds(&bounds);
if (SUCCEEDED(result))
{
std::wstringstream message;
message << L"Left:\t" << bounds.left << L"\n"
<< L"Top:\t" << bounds.top << L"\n"
<< L"Right:\t" << bounds.right << L"\n"
<< L"Bottom:\t" << bounds.bottom << std::endl;
MessageBox(nullptr, message.str().c_str(), L"WebView Bounds", MB_OK);
}
}
// Show the current zoom factor of the WebView.
void ViewComponent::ShowWebViewZoom()
{
double zoomFactor;
HRESULT result = m_controller->get_ZoomFactor(&zoomFactor);
if (SUCCEEDED(result))
{
std::wstringstream message;
message << L"Zoom Factor:\t" << zoomFactor << std::endl;
MessageBox(nullptr, message.str().c_str(), L"WebView Zoom Factor", MB_OK);
}
}
void ViewComponent::SetTransform(TransformType transformType)
{
if (!m_compositionController)
{
MessageBox(
nullptr,
L"Setting transform is not supported in windowed mode."
"Choose a windowless mode for creation before trying to apply a transform.",
L"Applying transform failed.", MB_OK);
return;
}
if (transformType == TransformType::kRotate30Deg)
{
D2D1_POINT_2F center = D2D1::Point2F(
(m_webViewBounds.right - m_webViewBounds.left) / 2.f,
(m_webViewBounds.bottom - m_webViewBounds.top) / 2.f);
D2D1::Matrix3x2F rotated = D2D1::Matrix3x2F::Rotation(30.0f, center);
m_webViewTransformMatrix = Convert3x2MatrixTo4x4Matrix(&rotated);
}
else if (transformType == TransformType::kRotate60DegDiagonally)
{
m_webViewTransformMatrix = D2D1::Matrix4x4F::RotationArbitraryAxis(
float(m_webViewBounds.right), float(m_webViewBounds.bottom), 0, 60);
}
else if (transformType == TransformType::kIdentity)
{
m_webViewTransformMatrix = D2D1::Matrix4x4F();
}
if (m_dcompDevice && !m_wincompCompositor)
{
wil::com_ptr<IDCompositionVisual3> dcompWebViewVisual3;
m_dcompWebViewVisual->QueryInterface(IID_PPV_ARGS(&dcompWebViewVisual3));
CHECK_FAILURE(dcompWebViewVisual3->SetTransform(m_webViewTransformMatrix));
CHECK_FAILURE(m_dcompDevice->Commit());
}
else if (m_wincompCompositor && !m_dcompDevice)
{
if (m_wincompWebViewVisual != nullptr)
{
m_wincompWebViewVisual.TransformMatrix(
*reinterpret_cast<numerics::float4x4*>(&m_webViewTransformMatrix));
}
}
else
{
FAIL_FAST();
}
}
//! [RasterizationScale]
void ViewComponent::SetRasterizationScale(float additionalScale)
{
if (m_controller3)
{
CHECK_FAILURE(m_controller3->put_ShouldDetectMonitorScaleChanges(FALSE));
m_webviewAdditionalRasterizationScale = additionalScale;
double rasterizationScale =
additionalScale * m_appWindow->GetDpiScale() * m_appWindow->GetTextScale();
CHECK_FAILURE(m_controller3->put_RasterizationScale(rasterizationScale));
}
}
//! [RasterizationScale]
//! [BoundsMode]
void ViewComponent::SetBoundsMode(COREWEBVIEW2_BOUNDS_MODE boundsMode)
{
if (m_controller3)
{
m_boundsMode = boundsMode;
CHECK_FAILURE(m_controller3->put_BoundsMode(boundsMode));
ResizeWebView();
}
}
//! [BoundsMode]
static D2D1_MATRIX_4X4_F Convert3x2MatrixTo4x4Matrix(D2D1_MATRIX_3X2_F* matrix3x2)
{
D2D1_MATRIX_4X4_F matrix4x4 = D2D1::Matrix4x4F();
matrix4x4._11 = matrix3x2->m11;
matrix4x4._12 = matrix3x2->m12;
matrix4x4._21 = matrix3x2->m21;
matrix4x4._22 = matrix3x2->m22;
matrix4x4._41 = matrix3x2->dx;
matrix4x4._42 = matrix3x2->dy;
return matrix4x4;
}
//! [SendMouseInput]
bool ViewComponent::OnMouseMessage(UINT message, WPARAM wParam, LPARAM lParam)
{
// Manually relay mouse messages to the WebView
if (m_dcompDevice || m_wincompCompositor)
{
POINT point;
POINTSTOPOINT(point, lParam);
if (message == WM_MOUSEWHEEL || message == WM_MOUSEHWHEEL)
{
// Mouse wheel messages are delivered in screen coordinates.
// SendMouseInput expects client coordinates for the WebView, so convert
// the point from screen to client.
::ScreenToClient(m_appWindow->GetMainWindow(), &point);
}
// Send the message to the WebView if the mouse location is inside the
// bounds of the WebView, if the message is telling the WebView the
// mouse has left the client area, or if we are currently capturing
// mouse events.
bool isMouseInWebView = PtInRect(&m_webViewBounds, point);
if (isMouseInWebView || message == WM_MOUSELEAVE || m_isCapturingMouse)
{
DWORD mouseData = 0;
switch (message)
{
case WM_MOUSEWHEEL:
case WM_MOUSEHWHEEL:
mouseData = GET_WHEEL_DELTA_WPARAM(wParam);
break;
case WM_XBUTTONDBLCLK:
case WM_XBUTTONDOWN:
case WM_XBUTTONUP:
mouseData = GET_XBUTTON_WPARAM(wParam);
break;
case WM_MOUSEMOVE:
if (!m_isTrackingMouse)
{
// WebView needs to know when the mouse leaves the client area
// so that it can dismiss hover popups. TrackMouseEvent will
// provide a notification when the mouse leaves the client area.
TrackMouseEvents(TME_LEAVE);
m_isTrackingMouse = true;
}
break;
case WM_MOUSELEAVE:
m_isTrackingMouse = false;
break;
}
// We need to capture the mouse in case the user drags the
// mouse outside of the window bounds and we still need to send
// mouse messages to the WebView process. This is useful for
// scenarios like dragging the scroll bar or panning a map.
// This is very similar to the Pointer Message case where a
// press started inside of the WebView.
if (message == WM_LBUTTONDOWN || message == WM_MBUTTONDOWN ||
message == WM_RBUTTONDOWN || message == WM_XBUTTONDOWN)
{
if (isMouseInWebView && ::GetCapture() != m_appWindow->GetMainWindow())
{
m_isCapturingMouse = true;
::SetCapture(m_appWindow->GetMainWindow());
}
}
else if (message == WM_LBUTTONUP || message == WM_MBUTTONUP ||
message == WM_RBUTTONUP || message == WM_XBUTTONUP)
{
if (::GetCapture() == m_appWindow->GetMainWindow())
{
m_isCapturingMouse = false;
::ReleaseCapture();
}
}
// Adjust the point from app client coordinates to webview client coordinates.
// WM_MOUSELEAVE messages don't have a point, so don't adjust the point.
if (message != WM_MOUSELEAVE)
{
point.x -= m_webViewBounds.left;
point.y -= m_webViewBounds.top;
}
CHECK_FAILURE(m_compositionController->SendMouseInput(
static_cast<COREWEBVIEW2_MOUSE_EVENT_KIND>(message),
static_cast<COREWEBVIEW2_MOUSE_EVENT_VIRTUAL_KEYS>(GET_KEYSTATE_WPARAM(wParam)),
mouseData, point));
return true;
}
else if (message == WM_MOUSEMOVE && m_isTrackingMouse)
{
// When the mouse moves outside of the WebView, but still inside the app
// turn off mouse tracking and send the WebView a leave event.
m_isTrackingMouse = false;
TrackMouseEvents(TME_LEAVE | TME_CANCEL);
OnMouseMessage(WM_MOUSELEAVE, 0, 0);
}
}
return false;
}
//! [SendMouseInput]
bool ViewComponent::OnPointerMessage(UINT message, WPARAM wParam, LPARAM lParam)
{
bool handled = false;
if (m_dcompDevice || m_wincompCompositor)
{
POINT point;
POINTSTOPOINT(point, lParam);
UINT pointerId = GET_POINTERID_WPARAM(wParam);
::ScreenToClient(m_appWindow->GetMainWindow(), &point);
bool pointerStartedInWebView = m_pointerIdsStartingInWebView.find(pointerId) !=
m_pointerIdsStartingInWebView.end();
// We want to send pointer input to the WebView for all pointers that either is in the
// WebView or started inside the WebView. For example, if a user started a page scroll
// inside of the WebView but dragged their finger outside of the WebView, we need to
// keep sending pointer events for those pointers.
if (PtInRect(&m_webViewBounds, point) || pointerStartedInWebView)
{
if (!pointerStartedInWebView &&
(message == WM_POINTERENTER || message == WM_POINTERDOWN))
{
m_pointerIdsStartingInWebView.insert(pointerId);
}
else if (message == WM_POINTERLEAVE)
{
m_pointerIdsStartingInWebView.erase(pointerId);
}
handled = true;
// Add the current offset before creating the CoreWebView2PointerInfo
D2D1_MATRIX_4X4_F m_webViewInputTransformMatrix = m_webViewTransformMatrix;
m_webViewInputTransformMatrix._41 += m_webViewBounds.left;
m_webViewInputTransformMatrix._42 += m_webViewBounds.top;
wil::com_ptr<ICoreWebView2PointerInfo> pointer_info;
wil::com_ptr<ICoreWebView2ExperimentalCompositionController4>
compositionControllerExperimental4 = m_compositionController.try_query<ICoreWebView2ExperimentalCompositionController4>();
COREWEBVIEW2_MATRIX_4X4* webviewMatrix =
reinterpret_cast<COREWEBVIEW2_MATRIX_4X4*>(&m_webViewInputTransformMatrix);
CHECK_FAILURE(compositionControllerExperimental4->CreateCoreWebView2PointerInfoFromPointerId(
pointerId, m_appWindow->GetMainWindow(), *webviewMatrix, &pointer_info));
CHECK_FAILURE(m_compositionController->SendPointerInput(
static_cast<COREWEBVIEW2_POINTER_EVENT_KIND>(message), pointer_info.get()));
}
}
return handled;
}
void ViewComponent::TrackMouseEvents(DWORD mouseTrackingFlags)
{
TRACKMOUSEEVENT tme;
tme.cbSize = sizeof(tme);
tme.dwFlags = mouseTrackingFlags;
tme.hwndTrack = m_appWindow->GetMainWindow();
tme.dwHoverTime = 0;
::TrackMouseEvent(&tme);
}
//! [BuildDCompTree]
// Create host app visual that the WebView will connect to.
// - Create a IDCompositionTarget for the host window
// - Create a visual and set that as the IDCompositionTarget's root
// - Create another visual and add that to the IDCompositionTarget's root.
// This visual will be the visual root for the WebView.
void ViewComponent::BuildDCompTreeUsingVisual()
{
CHECK_FAILURE_BOOL(m_dcompDevice != nullptr);
if (m_dcompWebViewVisual == nullptr)
{
CHECK_FAILURE(m_dcompDevice->CreateTargetForHwnd(
m_appWindow->GetMainWindow(), TRUE, &m_dcompHwndTarget));
CHECK_FAILURE(m_dcompDevice->CreateVisual(&m_dcompRootVisual));
CHECK_FAILURE(m_dcompHwndTarget->SetRoot(m_dcompRootVisual.get()));
CHECK_FAILURE(m_dcompDevice->CreateVisual(&m_dcompWebViewVisual));
CHECK_FAILURE(m_dcompRootVisual->AddVisual(m_dcompWebViewVisual.get(), TRUE, nullptr));
}
}
//! [BuildDCompTree]
void ViewComponent::DestroyDCompVisualTree()
{
if (m_dcompWebViewVisual)
{
m_dcompWebViewVisual->RemoveAllVisuals();
m_dcompWebViewVisual.reset();
m_dcompRootVisual->RemoveAllVisuals();
m_dcompRootVisual.reset();
m_dcompHwndTarget->SetRoot(nullptr);
m_dcompHwndTarget.reset();
m_dcompDevice->Commit();
}
if (m_dcompTarget)
{
m_dcompTarget->RemoveOwnerRef();
m_dcompTarget = nullptr;
}
}
void ViewComponent::BuildWinCompVisualTree()
{
namespace abiComp = ABI::Windows::UI::Composition;
if (m_wincompWebViewVisual == nullptr)
{
auto interop = m_wincompCompositor.as<abiComp::Desktop::ICompositorDesktopInterop>();
winrt::check_hresult(interop->CreateDesktopWindowTarget(
m_appWindow->GetMainWindow(), false,
reinterpret_cast<abiComp::Desktop::IDesktopWindowTarget**>(winrt::put_abi(m_wincompHwndTarget))));
m_wincompRootVisual = m_wincompCompositor.CreateContainerVisual();
m_wincompHwndTarget.Root(m_wincompRootVisual);
m_wincompWebViewVisual = m_wincompCompositor.CreateContainerVisual();
m_wincompRootVisual.Children().InsertAtTop(m_wincompWebViewVisual);
}
}
void ViewComponent::DestroyWinCompVisualTree()
{
if (m_wincompWebViewVisual != nullptr)
{
m_wincompWebViewVisual.Children().RemoveAll();
m_wincompWebViewVisual = nullptr;
m_wincompRootVisual.Children().RemoveAll();
m_wincompRootVisual = nullptr;
m_wincompHwndTarget.Root(nullptr);
m_wincompHwndTarget = nullptr;
}
}
//! [ToggleDefaultDownloadDialog]
void ViewComponent::ToggleDefaultDownloadDialog()
{
if (m_webView2_9)
{
BOOL isOpen;
m_webView2_9->get_IsDefaultDownloadDialogOpen(&isOpen);
if (isOpen)
{
m_webView2_9->CloseDefaultDownloadDialog();
}
else
{
m_webView2_9->OpenDefaultDownloadDialog();
}
}
}
//! [ToggleDefaultDownloadDialog]
//! [SetDefaultDownloadDialogPosition]
void ViewComponent::SetDefaultDownloadDialogPosition()
{
COREWEBVIEW2_DEFAULT_DOWNLOAD_DIALOG_CORNER_ALIGNMENT cornerAlignment =
COREWEBVIEW2_DEFAULT_DOWNLOAD_DIALOG_CORNER_ALIGNMENT_TOP_LEFT;
POINT margin = {m_downloadsButtonMargin,
(m_downloadsButtonMargin + m_downloadsButtonHeight)};
CHECK_FAILURE(
m_webView2_9->put_DefaultDownloadDialogCornerAlignment(
cornerAlignment));
CHECK_FAILURE(
m_webView2_9->put_DefaultDownloadDialogMargin(margin));
}
//! [SetDefaultDownloadDialogPosition]
void ViewComponent::ToggleDownloadsButton()
{
if (!m_webView2_9)
{
FeatureNotAvailable();
return;
}
if (!m_downloadsButton)
{
CreateDownloadsButton();
return;
}
int nCmdShow = (IsWindowVisible(m_downloadsButton)) ? SW_HIDE : SW_SHOW;
ShowWindow(m_downloadsButton, nCmdShow);
}
void ViewComponent::CreateDownloadsButton()
{
RECT bounds;
CHECK_FAILURE(m_controller->get_Bounds(&bounds));
m_downloadsButton = CreateWindow(
L"button", L"Downloads", WS_CHILD | WS_VISIBLE | BS_PUSHBUTTON,
bounds.left + m_downloadsButtonMargin,
bounds.top + m_downloadsButtonMargin, m_downloadsButtonWidth,
m_downloadsButtonHeight, m_appWindow->GetMainWindow(),