gears/ui/ie/html_dialog_bridge_iemobile.cc

   1 // Copyright 2007, Google Inc.
   2 //
   3 // Redistribution and use in source and binary forms, with or without
   4 // modification, are permitted provided that the following conditions are met:
   5 //
   6 //  1. Redistributions of source code must retain the above copyright notice,
   7 //     this list of conditions and the following disclaimer.
   8 //  2. Redistributions in binary form must reproduce the above copyright notice,
   9 //     this list of conditions and the following disclaimer in the documentation
  10 //     and/or other materials provided with the distribution.
  11 //  3. Neither the name of Google Inc. nor the names of its contributors may be
  12 //     used to endorse or promote products derived from this software without
  13 //     specific prior written permission.
  14 //
  15 // THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
  16 // WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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  18 // EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  19 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  20 // PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
  21 // OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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  23 // OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
  24 // ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  25
  26 #include <assert.h>
  27 #include <oleidl.h>
  28 #include <piedocvw.h>
  29 #include <pvdispid.h>
  30 #include <shlguid.h>
  31 #include <webvw.h>
  32 #include <windows.h>
  33
  34 #include "gears/base/common/common.h"
  35 #include "gears/base/common/thread_locals.h"
  36 #include "gears/base/ie/activex_utils.h"
  37 #include "gears/base/ie/atl_headers.h"
  38 #include "gears/ui/ie/html_dialog_bridge_iemobile.h"
  39 #include "gears/third_party/AtlActiveScriptSite.h"
  40
  41 // Set the permissions dialog object
  42 // window.external does not work on PIE, so we use this instead...
  43 // basically we get the browser object used by the permissions dialog
  44 // and traverse the dom to find a PIEDialogBridge instance. If there is one,
  45 // we can safely set the dialog pointer.
  46
  47 HRESULT PIEDialogBridge::AccessPermissionsDialog() {
  48   // First we get the global permissions dialog object...
  49   // (permissions dialog is modal)
  50
  51   CComQIPtr<HtmlDialogHostInterface> permissions_dialog(
  52     HtmlDialogHost::html_permissions_dialog_);
  53
  54   if (!permissions_dialog)
  55     return S_FALSE;
  56
  57   HtmlDialogHost* html_dialog = HtmlDialogHost::html_permissions_dialog_;
  58   CComPtr<IPIEHTMLDocument2> document(html_dialog->document_);
  59
  60   if (!document) return S_FALSE;
  61
  62   // then we retrieve all the elements in the document, and we look for us
  63   CComPtr<IPIEHTMLElementCollection> html_collection;
  64   HRESULT hr = document->get_all(&html_collection);
  65   ASSERT(html_collection);
  66
  67   long len = 0;
  68   hr = html_collection->get_length(&len);
  69   if (hr != S_OK)
  70     return S_FALSE;
  71
  72   for (int i = 0; i < len; i++) {
  73     VARIANT index;
  74     VariantInit(&index);
  75     index.vt = VT_I4;
  76     index.intVal = static_cast<int>(i);
  77
  78     CComPtr<IDispatch> disp;
  79     hr = html_collection->item(index, index, &disp);
  80
  81     if (disp) {
  82       // get the current element
  83       CComQIPtr<IPIEHTMLObjectElement> elem(disp);
  84
  85       // if we have an object element, we check that it's a
  86       // PIEDialogBridge object; we only set one object per document.
  87       if (elem) {
  88         CComQIPtr<PIEDialogBridgeInterface> bridge_pointer;
  89         CComPtr<IDispatch> disp_object;
  90         hr = elem->get_object(&disp_object);
  91         bridge_pointer = disp_object;
  92         if (bridge_pointer) {
  93           bridge_pointer->SetDialog(permissions_dialog);
  94           return S_OK;
  95         }
  96       }
  97     }
  98   }
  99   return S_FALSE;
 100 }
 101
 102 HRESULT PIEDialogBridge::SetDialog(IDispatch* dialog) {
 103   if (!dialog_) {
 104     dialog_ = dialog;
 105     if (dialog_) {
 106       return S_OK;
 107     } else {
 108       return S_FALSE;
 109     }
 110   }
 111   return S_OK;
 112 }
 113
 114 HRESULT PIEDialogBridge::IsPocketIE(VARIANT_BOOL *retval) {
 115   if (!dialog_) {
 116     AccessPermissionsDialog();
 117   }
 118   if (dialog_) {
 119     return dialog_->IsPocketIE(retval);
 120   }
 121   return S_FALSE;
 122 }
 123
 124 HRESULT PIEDialogBridge::GetDialogArguments(BSTR *args_string) {
 125   if (!dialog_) {
 126     AccessPermissionsDialog();
 127   }
 128   if (dialog_) {
 129     HRESULT hr = dialog_->GetDialogArguments(args_string);
 130     return hr;
 131   }
 132   return S_FALSE;
 133 }
 134
 135 HRESULT PIEDialogBridge::CloseDialog(const BSTR result_string) {
 136   if (!dialog_) {
 137     AccessPermissionsDialog();
 138   }
 139   if (dialog_) {
 140     return dialog_->CloseDialog(result_string);
 141   }
 142   return S_FALSE;
 143 }