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ScriptComponent.cpp
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309 lines (287 loc) · 10.4 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 "ScriptComponent.h"
#include "CheckFailure.h"
#include "TextInputDialog.h"
using namespace Microsoft::WRL;
ScriptComponent::ScriptComponent(AppWindow* appWindow)
: m_appWindow(appWindow), m_webView(appWindow->GetWebView())
{ }
bool ScriptComponent::HandleWindowMessage(
HWND hWnd,
UINT message,
WPARAM wParam,
LPARAM lParam,
LRESULT* result)
{
if (message == WM_COMMAND)
{
switch (LOWORD(wParam))
{
case IDM_INJECT_SCRIPT:
InjectScript();
return true;
case ID_ADD_INITIALIZE_SCRIPT:
AddInitializeScript();
return true;
case ID_REMOVE_INITIALIZE_SCRIPT:
RemoveInitializeScript();
return true;
case IDM_POST_WEB_MESSAGE_STRING:
SendStringWebMessage();
return true;
case IDM_POST_WEB_MESSAGE_JSON:
SendJsonWebMessage();
return true;
case IDM_SUBSCRIBE_TO_CDP_EVENT:
SubscribeToCdpEvent();
return true;
case IDM_CALL_CDP_METHOD:
CallCdpMethod();
return true;
case IDM_ADD_REMOTE_OBJECT:
AddComObject();
return true;
case IDM_OPEN_DEVTOOLS_WINDOW:
m_webView->OpenDevToolsWindow();
return true;
}
}
return false;
}
//! [ExecuteScript]
// Prompt the user for some script and then execute it.
void ScriptComponent::InjectScript()
{
TextInputDialog dialog(
m_appWindow->GetMainWindow(),
L"Inject Script",
L"Enter script code:",
L"Enter the JavaScript code to run in the webview.",
L"window.getComputedStyle(document.body).backgroundColor");
if (dialog.confirmed)
{
m_webView->ExecuteScript(dialog.input.c_str(),
Callback<ICoreWebView2ExecuteScriptCompletedHandler>(
[](HRESULT error, PCWSTR result) -> HRESULT
{
if (error != S_OK) {
ShowFailure(error, L"ExecuteScript failed");
}
MessageBox(nullptr, result, L"ExecuteScript Result", MB_OK);
return S_OK;
}).Get());
}
}
//! [ExecuteScript]
//! [AddScriptToExecuteOnDocumentCreated]
// Prompt the user for some script and register it to execute whenever a new page loads.
void ScriptComponent::AddInitializeScript()
{
TextInputDialog dialog(
m_appWindow->GetMainWindow(),
L"Add Initialize Script",
L"Initialization Script:",
L"Enter the JavaScript code to run as the initialization script that "
L"runs before any script in the HTML document.",
// This example script stops child frames from opening new windows. Because
// the initialization script runs before any script in the HTML document, we
// can trust the results of our checks on window.parent and window.top.
L"if (window.parent !== window.top) {\r\n"
L" delete window.open;\r\n"
L"}");
if (dialog.confirmed)
{
m_webView->AddScriptToExecuteOnDocumentCreated(
dialog.input.c_str(),
Callback<ICoreWebView2AddScriptToExecuteOnDocumentCreatedCompletedHandler>(
[this](HRESULT error, PCWSTR id) -> HRESULT
{
m_lastInitializeScriptId = id;
MessageBox(nullptr, id, L"AddScriptToExecuteOnDocumentCreated Id", MB_OK);
return S_OK;
}).Get());
}
}
//! [AddScriptToExecuteOnDocumentCreated]
// Prompt the user for an initialization script ID and deregister that script.
void ScriptComponent::RemoveInitializeScript()
{
TextInputDialog dialog(
m_appWindow->GetMainWindow(),
L"Remove Initialize Script",
L"Script ID:",
L"Enter the ID created from Add Initialize Script.",
m_lastInitializeScriptId.c_str());
if (dialog.confirmed)
{
m_webView->RemoveScriptToExecuteOnDocumentCreated(dialog.input.c_str());
}
}
// Prompt the user for a string and then post it as a web message.
void ScriptComponent::SendStringWebMessage()
{
TextInputDialog dialog(
m_appWindow->GetMainWindow(),
L"Post Web Message String",
L"Web message string:",
L"Enter the web message as a string.");
if (dialog.confirmed)
{
m_webView->PostWebMessageAsString(dialog.input.c_str());
}
}
// Prompt the user for some JSON and then post it as a web message.
void ScriptComponent::SendJsonWebMessage()
{
TextInputDialog dialog(
m_appWindow->GetMainWindow(),
L"Post Web Message JSON",
L"Web message JSON:",
L"Enter the web message as JSON.",
L"{\"SetColor\":\"blue\"}");
if (dialog.confirmed)
{
m_webView->PostWebMessageAsJson(dialog.input.c_str());
}
}
//! [DevToolsProtocolEventReceived]
// Prompt the user to name a CDP event, and then subscribe to that event.
void ScriptComponent::SubscribeToCdpEvent()
{
TextInputDialog dialog(
m_appWindow->GetMainWindow(),
L"Subscribe to CDP Event",
L"CDP event name:",
L"Enter the name of the CDP event to subscribe to.\r\n"
L"You may also have to call the \"enable\" method of the\r\n"
L"event's domain to receive events (for example \"Log.enable\").\r\n",
L"Log.entryAdded");
if (dialog.confirmed)
{
std::wstring eventName = dialog.input;
wil::com_ptr<ICoreWebView2DevToolsProtocolEventReceiver> receiver;
CHECK_FAILURE(
m_webView->GetDevToolsProtocolEventReceiver(eventName.c_str(), &receiver));
// If we are already subscribed to this event, unsubscribe first.
auto preexistingToken = m_devToolsProtocolEventReceivedTokenMap.find(eventName);
if (preexistingToken != m_devToolsProtocolEventReceivedTokenMap.end())
{
CHECK_FAILURE(receiver->remove_DevToolsProtocolEventReceived(
preexistingToken->second));
}
CHECK_FAILURE(receiver->add_DevToolsProtocolEventReceived(
Callback<ICoreWebView2DevToolsProtocolEventReceivedEventHandler>(
[eventName](
ICoreWebView2* sender,
ICoreWebView2DevToolsProtocolEventReceivedEventArgs* args) -> HRESULT {
wil::unique_cotaskmem_string parameterObjectAsJson;
CHECK_FAILURE(args->get_ParameterObjectAsJson(¶meterObjectAsJson));
MessageBox(
nullptr, parameterObjectAsJson.get(),
(L"CDP Event Fired: " + eventName).c_str(), MB_OK);
return S_OK;
})
.Get(),
&m_devToolsProtocolEventReceivedTokenMap[eventName]));
}
}
//! [DevToolsProtocolEventReceived]
//! [CallDevToolsProtocolMethod]
// Prompt the user for the name and parameters of a CDP method, then call it.
void ScriptComponent::CallCdpMethod()
{
TextInputDialog dialog(
m_appWindow->GetMainWindow(),
L"Call CDP Method",
L"CDP method name:",
L"Enter the CDP method name to call, followed by a space,\r\n"
L"followed by the parameters in JSON format.",
L"Runtime.evaluate {\"expression\":\"alert(\\\"test\\\")\"}");
if (dialog.confirmed)
{
size_t delimiterPos = dialog.input.find(L' ');
std::wstring methodName = dialog.input.substr(0, delimiterPos);
std::wstring methodParams =
(delimiterPos < dialog.input.size()
? dialog.input.substr(delimiterPos + 1)
: L"{}");
m_webView->CallDevToolsProtocolMethod(
methodName.c_str(),
methodParams.c_str(),
Callback<ICoreWebView2CallDevToolsProtocolMethodCompletedHandler>(
[](HRESULT error, PCWSTR resultJson) -> HRESULT
{
MessageBox(nullptr, resultJson, L"CDP Method Result", MB_OK);
return S_OK;
}).Get());
}
}
//! [CallDevToolsProtocolMethod]
void ScriptComponent::AddComObject()
{
TextInputDialog dialog(
m_appWindow->GetMainWindow(),
L"Add COM object",
L"CLSID or ProgID of COM object:",
L"Enter the CLSID (eg '{0002DF01-0000-0000-C000-000000000046}')\r\n"
L"or ProgID (eg 'InternetExplorer.Application') of the COM object to create and\r\n"
L"provide to the WebView as `window.chrome.remoteObjects.example`.",
L"InternetExplorer.Application");
if (dialog.confirmed)
{
CLSID classId = {};
HRESULT hr = CLSIDFromProgID(dialog.input.c_str(), &classId);
if (FAILED(hr))
{
hr = CLSIDFromString(dialog.input.c_str(), &classId);
}
if (SUCCEEDED(hr))
{
wil::com_ptr_nothrow<IDispatch> objectAsDispatch;
hr = CoCreateInstance(
classId,
nullptr,
CLSCTX_LOCAL_SERVER | CLSCTX_INPROC_SERVER | CLSCTX_INPROC_HANDLER,
IID_PPV_ARGS(&objectAsDispatch));
if (SUCCEEDED(hr))
{
wil::unique_variant objectAsVariant;
objectAsVariant.vt = VT_DISPATCH;
hr = objectAsDispatch.query_to(IID_PPV_ARGS(&objectAsVariant.pdispVal));
if (SUCCEEDED(hr))
{
hr = m_webView->AddRemoteObject(L"example", &objectAsVariant);
if (FAILED(hr))
{
ShowFailure(hr, L"AddRemoteObject failed");
}
}
else
{
ShowFailure(hr, L"COM object doesn't support IDispatch");
}
}
else
{
ShowFailure(hr, L"CoCreateInstance failed");
}
}
else
{
ShowFailure(hr, L"Failed to convert string to CLSID or ProgID");
}
}
}
ScriptComponent::~ScriptComponent()
{
for (auto& pair : m_devToolsProtocolEventReceivedTokenMap)
{
wil::com_ptr<ICoreWebView2DevToolsProtocolEventReceiver> receiver;
CHECK_FAILURE(
m_webView->GetDevToolsProtocolEventReceiver(pair.first.c_str(), &receiver));
receiver->remove_DevToolsProtocolEventReceived(pair.second);
}
}