Take out the activex control.

webkit/activex_shim/activex_plugin.cc

Index: webkit/activex_shim/activex_plugin.cc
===================================================================
--- webkit/activex_shim/activex_plugin.cc	(revision 25626)
+++ webkit/activex_shim/activex_plugin.cc	(working copy)
@@ -1,485 +0,0 @@
-// Copyright (c) 2006-2008 The Chromium 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 "webkit/activex_shim/activex_plugin.h"
-
-#include <algorithm>
-
-#include "base/fix_wp64.h"
-#include "base/scoped_comptr_win.h"
-#include "base/string_util.h"
-#include "googleurl/src/gurl.h"
-#include "webkit/activex_shim/activex_shared.h"
-#include "webkit/activex_shim/activex_util.h"
-#include "webkit/activex_shim/npp_impl.h"
-#include "webkit/activex_shim/npn_scripting.h"
-#include "webkit/activex_shim/web_activex_site.h"
-
-using std::string;
-using std::wstring;
-
-namespace activex_shim {
-
-// Constant strings used in SetProp.
-const wchar_t WNDPROP_ORIGINAL_WNDPROC[] = L"activexshim_orgwndproc";
-
-ActiveXPlugin::ActiveXPlugin(NPP instance)
-    : DispatchObject(NULL),
-      npp_(instance),
-      container_(NULL),
-      windowless_(false),
-      tried_activation_(false),
-      control_activated_(false),
-      activex_type_(ACTIVEX_GENERIC) {
-  rect_.left = 0;
-  rect_.top = 0;
-  rect_.right = 0;
-  rect_.bottom = 0;
-}
-
-ActiveXPlugin::~ActiveXPlugin() {
-  // Releases all spawned Dispatch objects so that we won't have dangling
-  // references.
-  ReleaseSpawned();
-}
-
-// Firefox makes it pretty easy to distiguish between attrs and real params.
-// it always places attrs first, then a pair with name "PARAM" and empty value.
-// However, Chrome always put params first, then attrs. Need to figure out
-// a way to handle them nicely.
-void ActiveXPlugin::ProcessParams(int16 argc, char* argn[], char* argv[]) {
-  // TODO(ruijiang): This list is not exhaustive yet. Add all possible
-  // commmon attributes.
-  static const char* const excluded_param_names[] = {
-    "id", "name", "type", "class", "classid",
-    "codebase", "width", "height" };
-
-  // Handle parameters.
-  for (int i = 0; i < argc; i++) {
-    if (argn[i] == NULL)
-      continue;
-
-    ControlParam param;
-    param.name = UTF8ToWide(argn[i]);
-    // Sometimes browser will pass NULL when no value is present.
-    if (argv[i] != NULL) {
-      param.value = UTF8ToWide(argv[i]);
-    }
-    if (LowerCaseEqualsASCII(param.name, "classid")) {
-      std::string clsid_ascii;
-      if (GetClsidFromClassidAttribute(argv[i], &clsid_ascii)) {
-        std::wstring raw_clsid = UTF8ToWide(clsid_ascii);
-        clsid_ = wstring(L"{") + raw_clsid + L"}";
-        activex_type_ = MapClassIdToType(clsid_ascii);
-      }
-    }
-    if (LowerCaseEqualsASCII(param.name, "codebase")) {
-      codebase_ = param.value;
-    }
-    bool ignore = false;
-    for (int i = 0; i < arraysize(excluded_param_names); i++) {
-      if (LowerCaseEqualsASCII(param.name, excluded_param_names[i])) {
-        ignore = true;
-        break;
-      }
-    }
-    if (!ignore)
-      params_.push_back(param);
-  }
-}
-
-void ActiveXPlugin::ConvertForEmbeddedWmp() {
-  clsid_ = L"{6bf52a52-394a-11d3-b153-00c04f79faa6}";
-  ControlParam* existing_url_param = NULL;
-  std::wstring src;
-  // Find the src parameter and use it to add a new url parameter.
-  // Find the volume parameter and setup defaults which make sense in
-  // the Activex media player world.
-  for (unsigned int i = 0; i < params_.size(); i++) {
-    if (LowerCaseEqualsASCII(params_[i].name, "src")) {
-      src = params_[i].value;
-    } else if (LowerCaseEqualsASCII(params_[i].name, "url")) {
-      existing_url_param = &params_[i];
-    } else if (LowerCaseEqualsASCII(params_[i].name, "volume")) {
-      // In the NPAPI media player world a volume value lesser than
-      // -3000 turns off the volume. A volume value of 0 indicates
-      // full volume. Translate these to their Activex counterparts.
-      int specified_volume = 0;
-      if (StringToInt(params_[i].value, &specified_volume)) {
-        // Valid volume lies between 0 and -3000
-        specified_volume = std::min (0, std::max(-3000, specified_volume));
-        // Translate to a value between 0 and 100.
-        int activex_volume = specified_volume / 30 + 100;
-        params_[i].value = IntToWString(activex_volume);
-      }
-    }
-  }
-
-  if (!src.empty()) {
-    if (existing_url_param == NULL)
-      params_.push_back(ControlParam(L"url", src));
-    else
-      existing_url_param->value = src;
-  }
-}
-
-NPError ActiveXPlugin::NPP_New(NPMIMEType plugin_type, int16 argc, char* argn[],
-                               char* argv[], NPSavedData* saved) {
-  ProcessParams(argc, argn, argv);
-
-  // If mimetype is not activex, it must be windows media type. Do necessary
-  // param conversion.
-  if (!IsMimeTypeActiveX(plugin_type))
-    ConvertForEmbeddedWmp();
-
-  DCHECK(container_ == NULL);
-  container_.reset(new NoRefIUnknownImpl<WebActiveXContainer>);
-  // At this time we don't know the browser window yet.
-  container_->Init(this);
-  HRESULT hr = container_->CreateControlWithSite(clsid_.c_str());
-  // TODO(ruijiang): We may still return OK, then show error inside the control
-  // so that user may get a chance to install it.
-  if (FAILED(hr))
-    return NPERR_GENERIC_ERROR;
-
-  // Does the control support windowless activation?
-  // TODO(ruijiang): temporary disable windowless plugin cause it's not fully
-  // working yet.
-  if (false && container_->GetFirstSite()->inplace_object_windowless_ != NULL) {
-    // TODO(ruijiang): Fix this. Right now Chrome will never return browser
-    // window when plugin hasn't set NPPVpluginWindowBool to false yet.
-    // Fix Chrome then we could remove this line.
-    g_browser->setvalue(npp_, NPPVpluginWindowBool, false);
-    // If we could get the container window successfully, we could go
-    // windowless.
-    HWND hwnd = NULL;
-    g_browser->getvalue(npp_, NPNVnetscapeWindow, &hwnd);
-    if (hwnd) {
-      container_->set_container_wnd(hwnd);
-      g_browser->setvalue(npp_, NPPVpluginWindowBool, false);
-      windowless_ = true;
-    } else {
-      g_browser->setvalue(npp_, NPPVpluginWindowBool,
-                          reinterpret_cast<void*>(true));
-    }
-  }
-
-  // TODO(ruijiang): It is very common that controls query for the current url
-  // during activation. In the current Chrome multi-process structure this
-  // often causes deadlock (e.g. realplayer). Let's cache the url first while
-  // looking for ways to solve deadlock.
-  GetCurrentURL();
-  return 0;
-}
-
-void SubclassWindow(HWND hwnd, WNDPROC wndproc) {
-  LONG_PTR org_wndproc = SetWindowLongPtr(
-      hwnd, GWL_WNDPROC, reinterpret_cast<LONG_PTR>(wndproc));
-  SetProp(hwnd, WNDPROP_ORIGINAL_WNDPROC,
-          reinterpret_cast<HANDLE>(org_wndproc));
-}
-
-// Unsubclass a window that has been subclassed by us (has the property
-// WNDPROP_ORIGINAL_WNDPROC)
-void UnsubclassWindow(HWND hwnd) {
-  WNDPROC org_wndproc = static_cast<WNDPROC>(
-      GetProp(hwnd, WNDPROP_ORIGINAL_WNDPROC));
-  // Either this window has already been unsubclassed or it is not subclassed
-  // by us.
-  if (org_wndproc == NULL)
-    return;
-  SetWindowLongPtr(hwnd,
-                   GWL_WNDPROC,
-                   reinterpret_cast<LONG_PTR>(org_wndproc));
-  RemoveProp(hwnd, WNDPROP_ORIGINAL_WNDPROC);
-}
-
-// Window procedure to subclass Window created by control.
-LRESULT CALLBACK ControlWindowProc(HWND hwnd, UINT msg,
-                              WPARAM wparam, LPARAM lparam) {
-  WNDPROC org_wndproc = static_cast<WNDPROC>(
-      GetProp(hwnd, WNDPROP_ORIGINAL_WNDPROC));
-  switch(msg) {
-    case WM_KEYDOWN:
-      if (wparam == VK_TAB) {
-        // TODO(ruijiang): Handle the tab key to transfer focus back to browser.
-        // HWND hparent = GetParent(hwnd);
-        // HWND hparent2 = GetParent(hparent);
-        // PostMessage(hparent2, WM_KEYDOWN, wparam, lparam);
-        // return 0;
-      }
-      break;
-    case WM_DESTROY:
-      // Unsubclass myself.
-      UnsubclassWindow(hwnd);
-      break;
-  }
-  if (org_wndproc != NULL)
-    return CallWindowProc(org_wndproc, hwnd, msg, wparam, lparam);
-  else
-    return 0;
-}
-
-// NPP API Processing.
-NPError ActiveXPlugin::NPP_SetWindow(NPWindow* window) {
-  if (window->type != NPWindowTypeWindow &&
-      window->type != NPWindowTypeDrawable)
-    return NPERR_GENERIC_ERROR;
-
-  // Remember the window position. This position is relative to the browser.
-  rect_.left = window->x;
-  rect_.top = window->y;
-  rect_.right = rect_.left + window->width;
-  rect_.bottom = rect_.top + window->height;
-
-  RECT client;
-  client.left = 0;
-  client.top = 0;
-  client.right = window->width;
-  client.bottom = window->height;
-
-  // This happens when we did not create the container because we do not
-  // allow initialization of certain ActiveX objects.
-  if (container_ == NULL)
-    return NPERR_GENERIC_ERROR;
-
-  if (!tried_activation_) {
-    // Do not try activation again.
-    tried_activation_ = true;
-
-    // For windowed controls we need to get the plugin window.
-    if (window->type == NPWindowTypeWindow)
-      container_->set_container_wnd(static_cast<HWND>(window->window));
-    WebActiveXSite* site = container_->GetFirstSite();
-    if (site == NULL)
-      return NPERR_GENERIC_ERROR;
-    POINT pos;
-    if (windowless()) {
-      pos.x = window->x;
-      pos.y = window->y;
-    } else {
-      pos.x = 0;
-      pos.y = 0;
-    }
-    HRESULT hr = site->ActivateControl(pos.x, pos.y, window->width,
-                                       window->height, params_);
-    if (FAILED(hr))
-      return NPERR_GENERIC_ERROR;
-
-    // We are done with activation.
-    control_activated_ = true;
-
-    if (window->type == NPWindowTypeWindow) {
-      HWND hwnd = static_cast<HWND>(window->window);
-      // The window some browser (FF) created does not clip children. It will
-      // cause blinking of the control area during resizing, clicking etc.
-      SetWindowLong(hwnd, GWL_STYLE,
-                    GetWindowLong(hwnd, GWL_STYLE) | WS_CLIPCHILDREN |
-                    WS_CLIPSIBLINGS);
-      // If the control has a window, we need to subclass it.
-      IUnknown* control = container_->GetFirstControl();
-      if (control) {
-        ScopedComPtr<IOleWindow> ole_window;
-        ole_window.QueryFrom(control);
-        if (ole_window != NULL) {
-          HWND control_wnd = NULL;
-          hr = ole_window->GetWindow(&control_wnd);
-          if (SUCCEEDED(hr)) {
-            SubclassWindow(control_wnd, ControlWindowProc);
-          }
-        }
-      }
-    }
-    return 0;
-  } else if (control_activated_) {
-    WebActiveXSite* site = container_->GetFirstSite();
-    DCHECK(site != NULL);
-    if (window->type == NPWindowTypeWindow) {
-      site->SetRect(&client);
-    } else {
-      site->SetRect(&rect_);
-    }
-    return 0;
-  } else {
-    return NPERR_GENERIC_ERROR;
-  }
-}
-
-NPError ActiveXPlugin::NPP_NewStream(NPMIMEType type, NPStream* stream,
-                                     NPBool seekable, uint16* stype) {
-  return 0;
-}
-
-NPError ActiveXPlugin::NPP_DestroyStream(NPStream* stream, NPReason reason) {
-  return 0;
-}
-
-int32 ActiveXPlugin::NPP_WriteReady(NPStream* stream) {
-  // TODO(ruijiang): Now returns an arbitary value. Will handle it later.
-  return 65536;
-}
-
-int32 ActiveXPlugin::NPP_Write(NPStream* stream, int32 offset, int32 len,
-                               void* buffer) {
-  // TODO(ruijiang): Pretend we have processed it. Otherwise FireFox will
-  // pretty much deadlock.
-  return len;
-}
-
-void ActiveXPlugin::NPP_StreamAsFile(NPStream* stream, const char* fname) {
-}
-
-void ActiveXPlugin::NPP_Print(NPPrint* platformPrint) {
-}
-
-int16 ActiveXPlugin::NPP_HandleEvent(void* event) {
-  if (!control_activated_)
-    return NPERR_GENERIC_ERROR;
-
-  NPEvent* evt = static_cast<NPEvent*>(event);
-  // TODO(ruijiang): Handle various events here for windowless control.
-  switch (evt->event) {
-    case WM_PAINT:
-      return HandlePaintEvent(
-          reinterpret_cast<HDC>(static_cast<LONG_PTR>(evt->wParam)),
-          reinterpret_cast<NPRect*>(static_cast<LONG_PTR>(evt->lParam)));
-    case WM_LBUTTONDOWN:
-    case WM_MBUTTONDOWN:
-    case WM_RBUTTONDOWN:
-    case WM_LBUTTONUP:
-    case WM_MBUTTONUP:
-    case WM_RBUTTONUP:
-    case WM_LBUTTONDBLCLK:
-    case WM_MBUTTONDBLCLK:
-    case WM_RBUTTONDBLCLK:
-    case WM_MOUSEMOVE:
-    case WM_KEYUP:
-    case WM_KEYDOWN:
-    case WM_SETFOCUS:
-      return HandleInputEvent(evt->event, evt->wParam, evt->lParam);
-    case WM_SETCURSOR:
-      // TODO(ruijiang): seems we are not getting this message
-      break;
-    case WM_KILLFOCUS:
-      // TODO(ruijiang): We are not getting this message yet.
-      break;
-    default:
-      break;
-  }
-
-  return 0;
-}
-
-int16 ActiveXPlugin::HandlePaintEvent(HDC dc, NPRect* invalid_area) {
-  // Chrome sets world transform by a certain offset in some cases, e.g.,
-  // clicking on the control. This will cause unfortunate effect on ActiveX
-  // control, because some will try to adjust the drawing rect and reset the
-  // window/view point origin to 0. However, they are not aware of the new
-  // SetWolrTransform feature. Thus causing drawing off the real control area
-  // (see atlctl.h: CComControlBase::OnDrawAdvanced)
-  // On the other hand, FireFox never changes the origins. I've spent hours
-  // figuring out what went wrong...
-  int saved = SaveDC(dc);
-
-  POINT offset;
-  offset.x = offset.y = 0;
-  // Easy way to figure out the difference between world and device.
-  LPtoDP(dc, &offset, 1);
-  RECT rc = rect_;
-  OffsetRect(&rc, offset.x, offset.y);
-
-  // Reset everything so that device page has the same origin as the world.
-  SetWindowOrgEx(dc, 0, 0, NULL);
-  SetViewportOrgEx(dc, 0, 0, NULL);
-  if (GetGraphicsMode(dc) == GM_ADVANCED) {
-    XFORM f;
-    if (GetWorldTransform(dc, &f)) {
-      f.eDx = 0;
-      f.eDy = 0;
-      SetWorldTransform(dc, &f);
-    }
-  }
-
-  WebActiveXSite* site = container_->GetFirstSite();
-  if (site->view_object_ != NULL)
-    site->view_object_->Draw(DVASPECT_CONTENT, -1, NULL, NULL, NULL, dc,
-                             reinterpret_cast<RECTL*>(&rc), NULL, NULL, 0);
-
-  RestoreDC(dc, saved);
-  return 0;
-}
-
-int16 ActiveXPlugin::HandleInputEvent(uint32 msg, uint32 wparam,
-                                      uint32 lparam) {
-  WebActiveXSite* site = container_->GetFirstSite();
-  if (site->inplace_object_windowless_ == NULL)
-    return 0;
-  LRESULT result;
-  HRESULT hr = site->inplace_object_windowless_->OnWindowMessage(
-      msg, wparam, lparam, &result);
-  return 0;
-}
-
-void ActiveXPlugin::NPP_URLNotify(const char* url, NPReason reason,
-                                  void* notifyData) {
-}
-
-NPError ActiveXPlugin::NPP_GetValue(NPPVariable variable, void* value) {
-  if (variable == NPPVpluginScriptableNPObject) {
-    *(static_cast<void**>(value)) = GetScriptableNPObject();
-    return 0;
-  }
-  return NPERR_GENERIC_ERROR;
-}
-
-NPError ActiveXPlugin::NPP_SetValue(NPNVariable variable, void* value) {
-  // No setable value yet.
-  return NPERR_GENERIC_ERROR;
-}
-
-void ActiveXPlugin::Draw(HDC dc, RECT* lprc, RECT* lpclip) {
-  // TODO(ruijiang): Temporary. Fix this later.
-  int ret = FillRect(dc, lprc,
-                     static_cast<HBRUSH>(GetStockObject(DKGRAY_BRUSH)));
-  TextOut(dc, lprc->left, lprc->top, _T("HelloWorld"), 5);
-}
-
-IDispatch* ActiveXPlugin::GetDispatch() {
-  if (container_ == NULL || container_->GetFirstControl() == NULL)
-    return NULL;
-  ScopedComPtr<IDispatch> disp;
-  disp.QueryFrom(container_->GetFirstControl());
-  if (!disp)
-    return NULL;
-  IDispatch* res = disp.Detach();
-  res->Release();
-  return res;
-}
-
-NPNScriptableObject ActiveXPlugin::GetWindow() {
-  if (!window_.IsValid()) {
-    NPObject* object = NULL;
-    g_browser->getvalue(npp_, NPNVWindowNPObject, &object);
-    window_ = NPNScriptableObject(npp_, object);
-  }
-  return window_;
-}
-
-std::wstring ActiveXPlugin::GetCurrentURL() {
-  if (url_.size())
-    return url_;
-  url_ = GetWindow().GetObjectProperty("document").GetStringProperty("URL");
-  return url_;
-}
-
-std::wstring ActiveXPlugin::ResolveURL(const std::wstring& url) {
-  // TODO(ruijiang): consider the base element of document.
-  std::wstring doc_url = GetCurrentURL();
-  GURL base(doc_url);
-  GURL ret = base.Resolve(url);
-  return UTF8ToWide(ret.spec());
-}
-
-
-}  // namespace activex_shim