pdf/out_of_process_instance.cc

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "pdf/out_of_process_instance.h"
   6
   7 #include <algorithm>  // for min/max()
   8 #define _USE_MATH_DEFINES  // for M_PI
   9 #include <cmath>      // for log() and pow()
  10 #include <math.h>
  11 #include <list>
  12
  13 #include "base/json/json_reader.h"
  14 #include "base/json/json_writer.h"
  15 #include "base/logging.h"
  16 #include "base/strings/string_number_conversions.h"
  17 #include "base/strings/string_split.h"
  18 #include "base/strings/string_util.h"
  19 #include "base/values.h"
  20 #include "chrome/common/content_restriction.h"
  21 #include "net/base/escape.h"
  22 #include "pdf/pdf.h"
  23 #include "ppapi/c/dev/ppb_cursor_control_dev.h"
  24 #include "ppapi/c/pp_errors.h"
  25 #include "ppapi/c/pp_rect.h"
  26 #include "ppapi/c/private/ppb_instance_private.h"
  27 #include "ppapi/c/private/ppp_pdf.h"
  28 #include "ppapi/c/trusted/ppb_url_loader_trusted.h"
  29 #include "ppapi/cpp/core.h"
  30 #include "ppapi/cpp/dev/memory_dev.h"
  31 #include "ppapi/cpp/dev/text_input_dev.h"
  32 #include "ppapi/cpp/dev/url_util_dev.h"
  33 #include "ppapi/cpp/module.h"
  34 #include "ppapi/cpp/point.h"
  35 #include "ppapi/cpp/private/pdf.h"
  36 #include "ppapi/cpp/private/var_private.h"
  37 #include "ppapi/cpp/rect.h"
  38 #include "ppapi/cpp/resource.h"
  39 #include "ppapi/cpp/url_request_info.h"
  40 #include "ppapi/cpp/var_array.h"
  41 #include "ppapi/cpp/var_dictionary.h"
  42 #include "ui/events/keycodes/keyboard_codes.h"
  43
  44 namespace chrome_pdf {
  45
  46 const char kChromePrint[] = "chrome://print/";
  47 const char kChromeExtension[] =
  48     "chrome-extension://mhjfbmdgcfjbbpaeojofohoefgiehjai";
  49
  50 // Dictionary Value key names for the document accessibility info
  51 const char kAccessibleNumberOfPages[] = "numberOfPages";
  52 const char kAccessibleLoaded[] = "loaded";
  53 const char kAccessibleCopyable[] = "copyable";
  54
  55 // PDF background colors.
  56 const uint32 kBackgroundColor = 0xFFCCCCCC;
  57 const uint32 kBackgroundColorMaterial = 0xFFEEEEEE;
  58
  59 // Constants used in handling postMessage() messages.
  60 const char kType[] = "type";
  61 // Viewport message arguments. (Page -> Plugin).
  62 const char kJSViewportType[] = "viewport";
  63 const char kJSXOffset[] = "xOffset";
  64 const char kJSYOffset[] = "yOffset";
  65 const char kJSZoom[] = "zoom";
  66 // Stop scrolling message (Page -> Plugin)
  67 const char kJSStopScrollingType[] = "stopScrolling";
  68 // Document dimension arguments (Plugin -> Page).
  69 const char kJSDocumentDimensionsType[] = "documentDimensions";
  70 const char kJSDocumentWidth[] = "width";
  71 const char kJSDocumentHeight[] = "height";
  72 const char kJSPageDimensions[] = "pageDimensions";
  73 const char kJSPageX[] = "x";
  74 const char kJSPageY[] = "y";
  75 const char kJSPageWidth[] = "width";
  76 const char kJSPageHeight[] = "height";
  77 // Document load progress arguments (Plugin -> Page)
  78 const char kJSLoadProgressType[] = "loadProgress";
  79 const char kJSProgressPercentage[] = "progress";
  80 // Bookmarks
  81 const char kJSBookmarksType[] = "bookmarks";
  82 const char kJSBookmarks[] = "bookmarks";
  83 // Get password arguments (Plugin -> Page)
  84 const char kJSGetPasswordType[] = "getPassword";
  85 // Get password complete arguments (Page -> Plugin)
  86 const char kJSGetPasswordCompleteType[] = "getPasswordComplete";
  87 const char kJSPassword[] = "password";
  88 // Print (Page -> Plugin)
  89 const char kJSPrintType[] = "print";
  90 // Save (Page -> Plugin)
  91 const char kJSSaveType[] = "save";
  92 // Go to page (Plugin -> Page)
  93 const char kJSGoToPageType[] = "goToPage";
  94 const char kJSPageNumber[] = "page";
  95 // Reset print preview mode (Page -> Plugin)
  96 const char kJSResetPrintPreviewModeType[] = "resetPrintPreviewMode";
  97 const char kJSPrintPreviewUrl[] = "url";
  98 const char kJSPrintPreviewGrayscale[] = "grayscale";
  99 const char kJSPrintPreviewPageCount[] = "pageCount";
 100 // Load preview page (Page -> Plugin)
 101 const char kJSLoadPreviewPageType[] = "loadPreviewPage";
 102 const char kJSPreviewPageUrl[] = "url";
 103 const char kJSPreviewPageIndex[] = "index";
 104 // Set scroll position (Plugin -> Page)
 105 const char kJSSetScrollPositionType[] = "setScrollPosition";
 106 const char kJSPositionX[] = "x";
 107 const char kJSPositionY[] = "y";
 108 // Set translated strings (Plugin -> Page)
 109 const char kJSSetTranslatedStringsType[] = "setTranslatedStrings";
 110 const char kJSGetPasswordString[] = "getPasswordString";
 111 const char kJSLoadingString[] = "loadingString";
 112 const char kJSLoadFailedString[] = "loadFailedString";
 113 // Request accessibility JSON data (Page -> Plugin)
 114 const char kJSGetAccessibilityJSONType[] = "getAccessibilityJSON";
 115 const char kJSAccessibilityPageNumber[] = "page";
 116 // Reply with accessibility JSON data (Plugin -> Page)
 117 const char kJSGetAccessibilityJSONReplyType[] = "getAccessibilityJSONReply";
 118 const char kJSAccessibilityJSON[] = "json";
 119 // Cancel the stream URL request (Plugin -> Page)
 120 const char kJSCancelStreamUrlType[] = "cancelStreamUrl";
 121 // Navigate to the given URL (Plugin -> Page)
 122 const char kJSNavigateType[] = "navigate";
 123 const char kJSNavigateUrl[] = "url";
 124 const char kJSNavigateNewTab[] = "newTab";
 125 // Open the email editor with the given parameters (Plugin -> Page)
 126 const char kJSEmailType[] = "email";
 127 const char kJSEmailTo[] = "to";
 128 const char kJSEmailCc[] = "cc";
 129 const char kJSEmailBcc[] = "bcc";
 130 const char kJSEmailSubject[] = "subject";
 131 const char kJSEmailBody[] = "body";
 132 // Rotation (Page -> Plugin)
 133 const char kJSRotateClockwiseType[] = "rotateClockwise";
 134 const char kJSRotateCounterclockwiseType[] = "rotateCounterclockwise";
 135 // Select all text in the document (Page -> Plugin)
 136 const char kJSSelectAllType[] = "selectAll";
 137 // Get the selected text in the document (Page -> Plugin)
 138 const char kJSGetSelectedTextType[] = "getSelectedText";
 139 // Reply with selected text (Plugin -> Page)
 140 const char kJSGetSelectedTextReplyType[] = "getSelectedTextReply";
 141 const char kJSSelectedText[] = "selectedText";
 142
 143 // List of named destinations (Plugin -> Page)
 144 const char kJSSetNamedDestinationsType[] = "setNamedDestinations";
 145 const char kJSNamedDestinations[] = "namedDestinations";
 146
 147 // Selecting text in document (Plugin -> Page)
 148 const char kJSSetIsSelectingType[] = "setIsSelecting";
 149 const char kJSIsSelecting[] = "isSelecting";
 150
 151 const int kFindResultCooldownMs = 100;
 152
 153 const double kMinZoom = 0.01;
 154
 155 namespace {
 156
 157 static const char kPPPPdfInterface[] = PPP_PDF_INTERFACE_1;
 158
 159 PP_Var GetLinkAtPosition(PP_Instance instance, PP_Point point) {
 160   pp::Var var;
 161   void* object = pp::Instance::GetPerInstanceObject(instance, kPPPPdfInterface);
 162   if (object) {
 163     var = static_cast<OutOfProcessInstance*>(object)->GetLinkAtPosition(
 164         pp::Point(point));
 165   }
 166   return var.Detach();
 167 }
 168
 169 void Transform(PP_Instance instance, PP_PrivatePageTransformType type) {
 170   void* object =
 171       pp::Instance::GetPerInstanceObject(instance, kPPPPdfInterface);
 172   if (object) {
 173     OutOfProcessInstance* obj_instance =
 174         static_cast<OutOfProcessInstance*>(object);
 175     switch (type) {
 176       case PP_PRIVATEPAGETRANSFORMTYPE_ROTATE_90_CW:
 177         obj_instance->RotateClockwise();
 178         break;
 179       case PP_PRIVATEPAGETRANSFORMTYPE_ROTATE_90_CCW:
 180         obj_instance->RotateCounterclockwise();
 181         break;
 182     }
 183   }
 184 }
 185
 186 PP_Bool GetPrintPresetOptionsFromDocument(
 187     PP_Instance instance,
 188     PP_PdfPrintPresetOptions_Dev* options) {
 189   void* object = pp::Instance::GetPerInstanceObject(instance, kPPPPdfInterface);
 190   if (object) {
 191     OutOfProcessInstance* obj_instance =
 192         static_cast<OutOfProcessInstance*>(object);
 193     obj_instance->GetPrintPresetOptionsFromDocument(options);
 194   }
 195   return PP_TRUE;
 196 }
 197
 198 const PPP_Pdf ppp_private = {
 199   &GetLinkAtPosition,
 200   &Transform,
 201   &GetPrintPresetOptionsFromDocument
 202 };
 203
 204 int ExtractPrintPreviewPageIndex(const std::string& src_url) {
 205   // Sample |src_url| format: chrome://print/id/page_index/print.pdf
 206   std::vector<std::string> url_substr;
 207   base::SplitString(src_url.substr(strlen(kChromePrint)), '/', &url_substr);
 208   if (url_substr.size() != 3)
 209     return -1;
 210
 211   if (url_substr[2] != "print.pdf")
 212     return -1;
 213
 214   int page_index = 0;
 215   if (!base::StringToInt(url_substr[1], &page_index))
 216     return -1;
 217   return page_index;
 218 }
 219
 220 bool IsPrintPreviewUrl(const std::string& url) {
 221   return url.substr(0, strlen(kChromePrint)) == kChromePrint;
 222 }
 223
 224 void ScalePoint(float scale, pp::Point* point) {
 225   point->set_x(static_cast<int>(point->x() * scale));
 226   point->set_y(static_cast<int>(point->y() * scale));
 227 }
 228
 229 void ScaleRect(float scale, pp::Rect* rect) {
 230   int left = static_cast<int>(floorf(rect->x() * scale));
 231   int top = static_cast<int>(floorf(rect->y() * scale));
 232   int right = static_cast<int>(ceilf((rect->x() + rect->width()) * scale));
 233   int bottom = static_cast<int>(ceilf((rect->y() + rect->height()) * scale));
 234   rect->SetRect(left, top, right - left, bottom - top);
 235 }
 236
 237 // TODO(raymes): Remove this dependency on VarPrivate/InstancePrivate. It's
 238 // needed right now to do a synchronous call to JavaScript, but we could easily
 239 // replace this with a custom PPB_PDF function.
 240 pp::Var ModalDialog(const pp::Instance* instance,
 241                     const std::string& type,
 242                     const std::string& message,
 243                     const std::string& default_answer) {
 244   const PPB_Instance_Private* interface =
 245       reinterpret_cast<const PPB_Instance_Private*>(
 246           pp::Module::Get()->GetBrowserInterface(
 247               PPB_INSTANCE_PRIVATE_INTERFACE));
 248   pp::VarPrivate window(pp::PASS_REF,
 249       interface->GetWindowObject(instance->pp_instance()));
 250   if (default_answer.empty())
 251     return window.Call(type, message);
 252   else
 253     return window.Call(type, message, default_answer);
 254 }
 255
 256 }  // namespace
 257
 258 OutOfProcessInstance::OutOfProcessInstance(PP_Instance instance)
 259     : pp::Instance(instance),
 260       pp::Find_Private(this),
 261       pp::Printing_Dev(this),
 262       pp::Selection_Dev(this),
 263       cursor_(PP_CURSORTYPE_POINTER),
 264       zoom_(1.0),
 265       device_scale_(1.0),
 266       full_(false),
 267       paint_manager_(this, this, true),
 268       first_paint_(true),
 269       document_load_state_(LOAD_STATE_LOADING),
 270       preview_document_load_state_(LOAD_STATE_COMPLETE),
 271       uma_(this),
 272       told_browser_about_unsupported_feature_(false),
 273       print_preview_page_count_(0),
 274       last_progress_sent_(0),
 275       recently_sent_find_update_(false),
 276       received_viewport_message_(false),
 277       did_call_start_loading_(false),
 278       stop_scrolling_(false),
 279       background_color_(kBackgroundColor) {
 280   loader_factory_.Initialize(this);
 281   timer_factory_.Initialize(this);
 282   form_factory_.Initialize(this);
 283   print_callback_factory_.Initialize(this);
 284   engine_.reset(PDFEngine::Create(this));
 285   pp::Module::Get()->AddPluginInterface(kPPPPdfInterface, &ppp_private);
 286   AddPerInstanceObject(kPPPPdfInterface, this);
 287
 288   RequestFilteringInputEvents(PP_INPUTEVENT_CLASS_MOUSE);
 289   RequestFilteringInputEvents(PP_INPUTEVENT_CLASS_KEYBOARD);
 290   RequestFilteringInputEvents(PP_INPUTEVENT_CLASS_TOUCH);
 291 }
 292
 293 OutOfProcessInstance::~OutOfProcessInstance() {
 294   RemovePerInstanceObject(kPPPPdfInterface, this);
 295 }
 296
 297 bool OutOfProcessInstance::Init(uint32_t argc,
 298                                 const char* argn[],
 299                                 const char* argv[]) {
 300   // Check if the PDF is being loaded in the PDF chrome extension. We only allow
 301   // the plugin to be put into "full frame" mode when it is being loaded in the
 302   // extension because this enables some features that we don't want pages
 303   // abusing outside of the extension.
 304   pp::Var document_url_var = pp::URLUtil_Dev::Get()->GetDocumentURL(this);
 305   std::string document_url = document_url_var.is_string() ?
 306       document_url_var.AsString() : std::string();
 307   std::string extension_url = std::string(kChromeExtension);
 308   bool in_extension =
 309       !document_url.compare(0, extension_url.size(), extension_url);
 310
 311   if (in_extension) {
 312     // Check if the plugin is full frame. This is passed in from JS.
 313     for (uint32_t i = 0; i < argc; ++i) {
 314       if (strcmp(argn[i], "full-frame") == 0) {
 315         full_ = true;
 316         break;
 317       }
 318     }
 319   }
 320
 321   // Only allow the plugin to handle find requests if it is full frame.
 322   if (full_)
 323     SetPluginToHandleFindRequests();
 324
 325   // Send translated strings to the extension where they will be displayed.
 326   // TODO(raymes): It would be better to get these in the extension directly
 327   // through an API but no such API currently exists.
 328   pp::VarDictionary translated_strings;
 329   translated_strings.Set(kType, kJSSetTranslatedStringsType);
 330   translated_strings.Set(kJSGetPasswordString,
 331       GetLocalizedString(PP_RESOURCESTRING_PDFGETPASSWORD));
 332   translated_strings.Set(kJSLoadingString,
 333       GetLocalizedString(PP_RESOURCESTRING_PDFLOADING));
 334   translated_strings.Set(kJSLoadFailedString,
 335       GetLocalizedString(PP_RESOURCESTRING_PDFLOAD_FAILED));
 336   PostMessage(translated_strings);
 337
 338   text_input_.reset(new pp::TextInput_Dev(this));
 339
 340   const char* stream_url = NULL;
 341   const char* original_url = NULL;
 342   const char* headers = NULL;
 343   bool is_material = false;
 344   for (uint32_t i = 0; i < argc; ++i) {
 345     if (strcmp(argn[i], "src") == 0)
 346       original_url = argv[i];
 347     else if (strcmp(argn[i], "stream-url") == 0)
 348       stream_url = argv[i];
 349     else if (strcmp(argn[i], "headers") == 0)
 350       headers = argv[i];
 351     else if (strcmp(argn[i], "is-material") == 0)
 352       is_material = true;
 353   }
 354
 355   if (is_material)
 356     background_color_ = kBackgroundColorMaterial;
 357   else
 358     background_color_ = kBackgroundColor;
 359
 360   // TODO(raymes): This is a hack to ensure that if no headers are passed in
 361   // then we get the right MIME type. When the in process plugin is removed we
 362   // can fix the document loader properly and remove this hack.
 363   if (!headers || strcmp(headers, "") == 0)
 364     headers = "content-type: application/pdf";
 365
 366   if (!original_url)
 367     return false;
 368
 369   if (!stream_url)
 370     stream_url = original_url;
 371
 372   // If we're in print preview mode we don't need to load the document yet.
 373   // A |kJSResetPrintPreviewModeType| message will be sent to the plugin letting
 374   // it know the url to load. By not loading here we avoid loading the same
 375   // document twice.
 376   if (IsPrintPreviewUrl(original_url))
 377     return true;
 378
 379   LoadUrl(stream_url);
 380   url_ = original_url;
 381   return engine_->New(original_url, headers);
 382 }
 383
 384 void OutOfProcessInstance::HandleMessage(const pp::Var& message) {
 385   pp::VarDictionary dict(message);
 386   if (!dict.Get(kType).is_string()) {
 387     NOTREACHED();
 388     return;
 389   }
 390
 391   std::string type = dict.Get(kType).AsString();
 392
 393   if (type == kJSViewportType &&
 394       dict.Get(pp::Var(kJSXOffset)).is_number() &&
 395       dict.Get(pp::Var(kJSYOffset)).is_number() &&
 396       dict.Get(pp::Var(kJSZoom)).is_number()) {
 397     received_viewport_message_ = true;
 398     stop_scrolling_ = false;
 399     double zoom = dict.Get(pp::Var(kJSZoom)).AsDouble();
 400     pp::FloatPoint scroll_offset(dict.Get(pp::Var(kJSXOffset)).AsDouble(),
 401                                  dict.Get(pp::Var(kJSYOffset)).AsDouble());
 402
 403     // Bound the input parameters.
 404     zoom = std::max(kMinZoom, zoom);
 405     SetZoom(zoom);
 406     scroll_offset = BoundScrollOffsetToDocument(scroll_offset);
 407     engine_->ScrolledToXPosition(scroll_offset.x() * device_scale_);
 408     engine_->ScrolledToYPosition(scroll_offset.y() * device_scale_);
 409   } else if (type == kJSGetPasswordCompleteType &&
 410              dict.Get(pp::Var(kJSPassword)).is_string()) {
 411     if (password_callback_) {
 412       pp::CompletionCallbackWithOutput<pp::Var> callback = *password_callback_;
 413       password_callback_.reset();
 414       *callback.output() = dict.Get(pp::Var(kJSPassword)).pp_var();
 415       callback.Run(PP_OK);
 416     } else {
 417       NOTREACHED();
 418     }
 419   } else if (type == kJSPrintType) {
 420     Print();
 421   } else if (type == kJSSaveType) {
 422     pp::PDF::SaveAs(this);
 423   } else if (type == kJSRotateClockwiseType) {
 424     RotateClockwise();
 425   } else if (type == kJSRotateCounterclockwiseType) {
 426     RotateCounterclockwise();
 427   } else if (type == kJSSelectAllType) {
 428     engine_->SelectAll();
 429   } else if (type == kJSResetPrintPreviewModeType &&
 430              dict.Get(pp::Var(kJSPrintPreviewUrl)).is_string() &&
 431              dict.Get(pp::Var(kJSPrintPreviewGrayscale)).is_bool() &&
 432              dict.Get(pp::Var(kJSPrintPreviewPageCount)).is_int()) {
 433     url_ = dict.Get(pp::Var(kJSPrintPreviewUrl)).AsString();
 434     preview_pages_info_ = std::queue<PreviewPageInfo>();
 435     preview_document_load_state_ = LOAD_STATE_COMPLETE;
 436     document_load_state_ = LOAD_STATE_LOADING;
 437     LoadUrl(url_);
 438     preview_engine_.reset();
 439     engine_.reset(PDFEngine::Create(this));
 440     engine_->SetGrayscale(dict.Get(pp::Var(kJSPrintPreviewGrayscale)).AsBool());
 441     engine_->New(url_.c_str());
 442
 443     print_preview_page_count_ =
 444         std::max(dict.Get(pp::Var(kJSPrintPreviewPageCount)).AsInt(), 0);
 445
 446     paint_manager_.InvalidateRect(pp::Rect(pp::Point(), plugin_size_));
 447   } else if (type == kJSLoadPreviewPageType &&
 448              dict.Get(pp::Var(kJSPreviewPageUrl)).is_string() &&
 449              dict.Get(pp::Var(kJSPreviewPageIndex)).is_int()) {
 450     ProcessPreviewPageInfo(dict.Get(pp::Var(kJSPreviewPageUrl)).AsString(),
 451                            dict.Get(pp::Var(kJSPreviewPageIndex)).AsInt());
 452   } else if (type == kJSGetAccessibilityJSONType) {
 453     pp::VarDictionary reply;
 454     reply.Set(pp::Var(kType), pp::Var(kJSGetAccessibilityJSONReplyType));
 455     if (dict.Get(pp::Var(kJSAccessibilityPageNumber)).is_int()) {
 456       int page = dict.Get(pp::Var(kJSAccessibilityPageNumber)).AsInt();
 457       reply.Set(pp::Var(kJSAccessibilityJSON),
 458                         pp::Var(engine_->GetPageAsJSON(page)));
 459     } else {
 460       base::DictionaryValue node;
 461       node.SetInteger(kAccessibleNumberOfPages, engine_->GetNumberOfPages());
 462       node.SetBoolean(kAccessibleLoaded,
 463                       document_load_state_ != LOAD_STATE_LOADING);
 464       bool has_permissions =
 465           engine_->HasPermission(PDFEngine::PERMISSION_COPY) ||
 466           engine_->HasPermission(PDFEngine::PERMISSION_COPY_ACCESSIBLE);
 467       node.SetBoolean(kAccessibleCopyable, has_permissions);
 468       std::string json;
 469       base::JSONWriter::Write(&node, &json);
 470       reply.Set(pp::Var(kJSAccessibilityJSON), pp::Var(json));
 471     }
 472     PostMessage(reply);
 473   } else if (type == kJSStopScrollingType) {
 474     stop_scrolling_ = true;
 475   } else if (type == kJSGetSelectedTextType) {
 476     std::string selected_text = engine_->GetSelectedText();
 477     // Always return unix newlines to JS.
 478     base::ReplaceChars(selected_text, "\r", std::string(), &selected_text);
 479     pp::VarDictionary reply;
 480     reply.Set(pp::Var(kType), pp::Var(kJSGetSelectedTextReplyType));
 481     reply.Set(pp::Var(kJSSelectedText), selected_text);
 482     PostMessage(reply);
 483   } else {
 484     NOTREACHED();
 485   }
 486 }
 487
 488 bool OutOfProcessInstance::HandleInputEvent(
 489     const pp::InputEvent& event) {
 490   // To simplify things, convert the event into device coordinates if it is
 491   // a mouse event.
 492   pp::InputEvent event_device_res(event);
 493   {
 494     pp::MouseInputEvent mouse_event(event);
 495     if (!mouse_event.is_null()) {
 496       pp::Point point = mouse_event.GetPosition();
 497       pp::Point movement = mouse_event.GetMovement();
 498       ScalePoint(device_scale_, &point);
 499       ScalePoint(device_scale_, &movement);
 500       mouse_event = pp::MouseInputEvent(
 501           this,
 502           event.GetType(),
 503           event.GetTimeStamp(),
 504           event.GetModifiers(),
 505           mouse_event.GetButton(),
 506           point,
 507           mouse_event.GetClickCount(),
 508           movement);
 509       event_device_res = mouse_event;
 510     }
 511   }
 512
 513   pp::InputEvent offset_event(event_device_res);
 514   switch (offset_event.GetType()) {
 515     case PP_INPUTEVENT_TYPE_MOUSEDOWN:
 516     case PP_INPUTEVENT_TYPE_MOUSEUP:
 517     case PP_INPUTEVENT_TYPE_MOUSEMOVE:
 518     case PP_INPUTEVENT_TYPE_MOUSEENTER:
 519     case PP_INPUTEVENT_TYPE_MOUSELEAVE: {
 520       pp::MouseInputEvent mouse_event(event_device_res);
 521       pp::MouseInputEvent mouse_event_dip(event);
 522       pp::Point point = mouse_event.GetPosition();
 523       point.set_x(point.x() - available_area_.x());
 524       offset_event = pp::MouseInputEvent(
 525           this,
 526           event.GetType(),
 527           event.GetTimeStamp(),
 528           event.GetModifiers(),
 529           mouse_event.GetButton(),
 530           point,
 531           mouse_event.GetClickCount(),
 532           mouse_event.GetMovement());
 533       break;
 534     }
 535     default:
 536       break;
 537   }
 538   if (engine_->HandleEvent(offset_event))
 539     return true;
 540
 541   // TODO(raymes): Implement this scroll behavior in JS:
 542   // When click+dragging, scroll the document correctly.
 543
 544   // Return true for unhandled clicks so the plugin takes focus.
 545   return (event.GetType() == PP_INPUTEVENT_TYPE_MOUSEDOWN);
 546 }
 547
 548 void OutOfProcessInstance::DidChangeView(const pp::View& view) {
 549   pp::Rect view_rect(view.GetRect());
 550   float old_device_scale = device_scale_;
 551   float device_scale = view.GetDeviceScale();
 552   pp::Size view_device_size(view_rect.width() * device_scale,
 553                             view_rect.height() * device_scale);
 554
 555   if (view_device_size != plugin_size_ || device_scale != device_scale_) {
 556     device_scale_ = device_scale;
 557     plugin_dip_size_ = view_rect.size();
 558     plugin_size_ = view_device_size;
 559
 560     paint_manager_.SetSize(view_device_size, device_scale_);
 561
 562     pp::Size new_image_data_size = PaintManager::GetNewContextSize(
 563         image_data_.size(),
 564         plugin_size_);
 565     if (new_image_data_size != image_data_.size()) {
 566       image_data_ = pp::ImageData(this,
 567                                   PP_IMAGEDATAFORMAT_BGRA_PREMUL,
 568                                   new_image_data_size,
 569                                   false);
 570       first_paint_ = true;
 571     }
 572
 573     if (image_data_.is_null()) {
 574       DCHECK(plugin_size_.IsEmpty());
 575       return;
 576     }
 577
 578     OnGeometryChanged(zoom_, old_device_scale);
 579   }
 580
 581   if (!stop_scrolling_) {
 582     pp::Point scroll_offset(view.GetScrollOffset());
 583     pp::FloatPoint scroll_offset_float(scroll_offset.x(),
 584                                        scroll_offset.y());
 585     scroll_offset_float = BoundScrollOffsetToDocument(scroll_offset_float);
 586     engine_->ScrolledToXPosition(scroll_offset_float.x() * device_scale_);
 587     engine_->ScrolledToYPosition(scroll_offset_float.y() * device_scale_);
 588   }
 589 }
 590
 591 void OutOfProcessInstance::GetPrintPresetOptionsFromDocument(
 592     PP_PdfPrintPresetOptions_Dev* options) {
 593   options->is_scaling_disabled = PP_FromBool(IsPrintScalingDisabled());
 594   options->copies = engine_->GetCopiesToPrint();
 595 }
 596
 597 pp::Var OutOfProcessInstance::GetLinkAtPosition(
 598     const pp::Point& point) {
 599   pp::Point offset_point(point);
 600   ScalePoint(device_scale_, &offset_point);
 601   offset_point.set_x(offset_point.x() - available_area_.x());
 602   return engine_->GetLinkAtPosition(offset_point);
 603 }
 604
 605 pp::Var OutOfProcessInstance::GetSelectedText(bool html) {
 606   if (html)
 607     return pp::Var();
 608   return engine_->GetSelectedText();
 609 }
 610
 611 uint32_t OutOfProcessInstance::QuerySupportedPrintOutputFormats() {
 612   return engine_->QuerySupportedPrintOutputFormats();
 613 }
 614
 615 int32_t OutOfProcessInstance::PrintBegin(
 616     const PP_PrintSettings_Dev& print_settings) {
 617   // For us num_pages is always equal to the number of pages in the PDF
 618   // document irrespective of the printable area.
 619   int32_t ret = engine_->GetNumberOfPages();
 620   if (!ret)
 621     return 0;
 622
 623   uint32_t supported_formats = engine_->QuerySupportedPrintOutputFormats();
 624   if ((print_settings.format & supported_formats) == 0)
 625     return 0;
 626
 627   print_settings_.is_printing = true;
 628   print_settings_.pepper_print_settings = print_settings;
 629   engine_->PrintBegin();
 630   return ret;
 631 }
 632
 633 pp::Resource OutOfProcessInstance::PrintPages(
 634     const PP_PrintPageNumberRange_Dev* page_ranges,
 635     uint32_t page_range_count) {
 636   if (!print_settings_.is_printing)
 637     return pp::Resource();
 638
 639   print_settings_.print_pages_called_ = true;
 640   return engine_->PrintPages(page_ranges, page_range_count,
 641                              print_settings_.pepper_print_settings);
 642 }
 643
 644 void OutOfProcessInstance::PrintEnd() {
 645   if (print_settings_.print_pages_called_)
 646     UserMetricsRecordAction("PDF.PrintPage");
 647   print_settings_.Clear();
 648   engine_->PrintEnd();
 649 }
 650
 651 bool OutOfProcessInstance::IsPrintScalingDisabled() {
 652   return !engine_->GetPrintScaling();
 653 }
 654
 655 bool OutOfProcessInstance::StartFind(const std::string& text,
 656                                                  bool case_sensitive) {
 657   engine_->StartFind(text.c_str(), case_sensitive);
 658   return true;
 659 }
 660
 661 void OutOfProcessInstance::SelectFindResult(bool forward) {
 662   engine_->SelectFindResult(forward);
 663 }
 664
 665 void OutOfProcessInstance::StopFind() {
 666   engine_->StopFind();
 667   tickmarks_.clear();
 668   SetTickmarks(tickmarks_);
 669 }
 670
 671 void OutOfProcessInstance::OnPaint(
 672     const std::vector<pp::Rect>& paint_rects,
 673     std::vector<PaintManager::ReadyRect>* ready,
 674     std::vector<pp::Rect>* pending) {
 675   if (image_data_.is_null()) {
 676     DCHECK(plugin_size_.IsEmpty());
 677     return;
 678   }
 679   if (first_paint_) {
 680     first_paint_ = false;
 681     pp::Rect rect = pp::Rect(pp::Point(), image_data_.size());
 682     FillRect(rect, background_color_);
 683     ready->push_back(PaintManager::ReadyRect(rect, image_data_, true));
 684   }
 685
 686   if (!received_viewport_message_)
 687     return;
 688
 689   engine_->PrePaint();
 690
 691   for (size_t i = 0; i < paint_rects.size(); i++) {
 692     // Intersect with plugin area since there could be pending invalidates from
 693     // when the plugin area was larger.
 694     pp::Rect rect =
 695         paint_rects[i].Intersect(pp::Rect(pp::Point(), plugin_size_));
 696     if (rect.IsEmpty())
 697       continue;
 698
 699     pp::Rect pdf_rect = available_area_.Intersect(rect);
 700     if (!pdf_rect.IsEmpty()) {
 701       pdf_rect.Offset(available_area_.x() * -1, 0);
 702
 703       std::vector<pp::Rect> pdf_ready;
 704       std::vector<pp::Rect> pdf_pending;
 705       engine_->Paint(pdf_rect, &image_data_, &pdf_ready, &pdf_pending);
 706       for (size_t j = 0; j < pdf_ready.size(); ++j) {
 707         pdf_ready[j].Offset(available_area_.point());
 708         ready->push_back(
 709             PaintManager::ReadyRect(pdf_ready[j], image_data_, false));
 710       }
 711       for (size_t j = 0; j < pdf_pending.size(); ++j) {
 712         pdf_pending[j].Offset(available_area_.point());
 713         pending->push_back(pdf_pending[j]);
 714       }
 715     }
 716
 717     for (size_t j = 0; j < background_parts_.size(); ++j) {
 718       pp::Rect intersection = background_parts_[j].location.Intersect(rect);
 719       if (!intersection.IsEmpty()) {
 720         FillRect(intersection, background_parts_[j].color);
 721         ready->push_back(
 722             PaintManager::ReadyRect(intersection, image_data_, false));
 723       }
 724     }
 725   }
 726
 727   engine_->PostPaint();
 728 }
 729
 730 void OutOfProcessInstance::DidOpen(int32_t result) {
 731   if (result == PP_OK) {
 732     if (!engine_->HandleDocumentLoad(embed_loader_)) {
 733       document_load_state_ = LOAD_STATE_LOADING;
 734       DocumentLoadFailed();
 735     }
 736   } else if (result != PP_ERROR_ABORTED) {  // Can happen in tests.
 737     NOTREACHED();
 738     DocumentLoadFailed();
 739   }
 740
 741   // If it's a progressive load, cancel the stream URL request so that requests
 742   // can be made on the original URL.
 743   // TODO(raymes): Make this clearer once the in-process plugin is deleted.
 744   if (engine_->IsProgressiveLoad()) {
 745     pp::VarDictionary message;
 746     message.Set(kType, kJSCancelStreamUrlType);
 747     PostMessage(message);
 748   }
 749 }
 750
 751 void OutOfProcessInstance::DidOpenPreview(int32_t result) {
 752   if (result == PP_OK) {
 753     preview_engine_.reset(PDFEngine::Create(new PreviewModeClient(this)));
 754     preview_engine_->HandleDocumentLoad(embed_preview_loader_);
 755   } else {
 756     NOTREACHED();
 757   }
 758 }
 759
 760 void OutOfProcessInstance::OnClientTimerFired(int32_t id) {
 761   engine_->OnCallback(id);
 762 }
 763
 764 void OutOfProcessInstance::CalculateBackgroundParts() {
 765   background_parts_.clear();
 766   int left_width = available_area_.x();
 767   int right_start = available_area_.right();
 768   int right_width = abs(plugin_size_.width() - available_area_.right());
 769   int bottom = std::min(available_area_.bottom(), plugin_size_.height());
 770
 771   // Add the left, right, and bottom rectangles.  Note: we assume only
 772   // horizontal centering.
 773   BackgroundPart part = {
 774     pp::Rect(0, 0, left_width, bottom),
 775     background_color_
 776   };
 777   if (!part.location.IsEmpty())
 778     background_parts_.push_back(part);
 779   part.location = pp::Rect(right_start, 0, right_width, bottom);
 780   if (!part.location.IsEmpty())
 781     background_parts_.push_back(part);
 782   part.location = pp::Rect(
 783       0, bottom, plugin_size_.width(), plugin_size_.height() - bottom);
 784   if (!part.location.IsEmpty())
 785     background_parts_.push_back(part);
 786 }
 787
 788 int OutOfProcessInstance::GetDocumentPixelWidth() const {
 789   return static_cast<int>(ceil(document_size_.width() * zoom_ * device_scale_));
 790 }
 791
 792 int OutOfProcessInstance::GetDocumentPixelHeight() const {
 793   return static_cast<int>(
 794       ceil(document_size_.height() * zoom_ * device_scale_));
 795 }
 796
 797 void OutOfProcessInstance::FillRect(const pp::Rect& rect, uint32 color) {
 798   DCHECK(!image_data_.is_null() || rect.IsEmpty());
 799   uint32* buffer_start = static_cast<uint32*>(image_data_.data());
 800   int stride = image_data_.stride();
 801   uint32* ptr = buffer_start + rect.y() * stride / 4 + rect.x();
 802   int height = rect.height();
 803   int width = rect.width();
 804   for (int y = 0; y < height; ++y) {
 805     for (int x = 0; x < width; ++x)
 806       *(ptr + x) = color;
 807     ptr += stride /4;
 808   }
 809 }
 810
 811 void OutOfProcessInstance::DocumentSizeUpdated(const pp::Size& size) {
 812   document_size_ = size;
 813
 814   pp::VarDictionary dimensions;
 815   dimensions.Set(kType, kJSDocumentDimensionsType);
 816   dimensions.Set(kJSDocumentWidth, pp::Var(document_size_.width()));
 817   dimensions.Set(kJSDocumentHeight, pp::Var(document_size_.height()));
 818   pp::VarArray page_dimensions_array;
 819   int num_pages = engine_->GetNumberOfPages();
 820   for (int i = 0; i < num_pages; ++i) {
 821     pp::Rect page_rect = engine_->GetPageRect(i);
 822     pp::VarDictionary page_dimensions;
 823     page_dimensions.Set(kJSPageX, pp::Var(page_rect.x()));
 824     page_dimensions.Set(kJSPageY, pp::Var(page_rect.y()));
 825     page_dimensions.Set(kJSPageWidth, pp::Var(page_rect.width()));
 826     page_dimensions.Set(kJSPageHeight, pp::Var(page_rect.height()));
 827     page_dimensions_array.Set(i, page_dimensions);
 828   }
 829   dimensions.Set(kJSPageDimensions, page_dimensions_array);
 830   PostMessage(dimensions);
 831
 832   OnGeometryChanged(zoom_, device_scale_);
 833 }
 834
 835 void OutOfProcessInstance::Invalidate(const pp::Rect& rect) {
 836   pp::Rect offset_rect(rect);
 837   offset_rect.Offset(available_area_.point());
 838   paint_manager_.InvalidateRect(offset_rect);
 839 }
 840
 841 void OutOfProcessInstance::Scroll(const pp::Point& point) {
 842   if (!image_data_.is_null())
 843     paint_manager_.ScrollRect(available_area_, point);
 844 }
 845
 846 void OutOfProcessInstance::ScrollToX(int x) {
 847   pp::VarDictionary position;
 848   position.Set(kType, kJSSetScrollPositionType);
 849   position.Set(kJSPositionX, pp::Var(x / device_scale_));
 850   PostMessage(position);
 851 }
 852
 853 void OutOfProcessInstance::ScrollToY(int y) {
 854   pp::VarDictionary position;
 855   position.Set(kType, kJSSetScrollPositionType);
 856   position.Set(kJSPositionY, pp::Var(y / device_scale_));
 857   PostMessage(position);
 858 }
 859
 860 void OutOfProcessInstance::ScrollToPage(int page) {
 861   if (engine_->GetNumberOfPages() == 0)
 862     return;
 863
 864   pp::VarDictionary message;
 865   message.Set(kType, kJSGoToPageType);
 866   message.Set(kJSPageNumber, pp::Var(page));
 867   PostMessage(message);
 868 }
 869
 870 void OutOfProcessInstance::NavigateTo(const std::string& url,
 871                                       bool open_in_new_tab) {
 872   pp::VarDictionary message;
 873   message.Set(kType, kJSNavigateType);
 874   message.Set(kJSNavigateUrl, url);
 875   message.Set(kJSNavigateNewTab, open_in_new_tab);
 876   PostMessage(message);
 877 }
 878
 879 void OutOfProcessInstance::UpdateCursor(PP_CursorType_Dev cursor) {
 880   if (cursor == cursor_)
 881     return;
 882   cursor_ = cursor;
 883
 884   const PPB_CursorControl_Dev* cursor_interface =
 885       reinterpret_cast<const PPB_CursorControl_Dev*>(
 886       pp::Module::Get()->GetBrowserInterface(PPB_CURSOR_CONTROL_DEV_INTERFACE));
 887   if (!cursor_interface) {
 888     NOTREACHED();
 889     return;
 890   }
 891
 892   cursor_interface->SetCursor(
 893       pp_instance(), cursor_, pp::ImageData().pp_resource(), NULL);
 894 }
 895
 896 void OutOfProcessInstance::UpdateTickMarks(
 897     const std::vector<pp::Rect>& tickmarks) {
 898   float inverse_scale = 1.0f / device_scale_;
 899   std::vector<pp::Rect> scaled_tickmarks = tickmarks;
 900   for (size_t i = 0; i < scaled_tickmarks.size(); i++)
 901     ScaleRect(inverse_scale, &scaled_tickmarks[i]);
 902   tickmarks_ = scaled_tickmarks;
 903 }
 904
 905 void OutOfProcessInstance::NotifyNumberOfFindResultsChanged(int total,
 906                                                             bool final_result) {
 907   // We don't want to spam the renderer with too many updates to the number of
 908   // find results. Don't send an update if we sent one too recently. If it's the
 909   // final update, we always send it though.
 910   if (final_result) {
 911     NumberOfFindResultsChanged(total, final_result);
 912     SetTickmarks(tickmarks_);
 913     return;
 914   }
 915
 916   if (recently_sent_find_update_)
 917     return;
 918
 919   NumberOfFindResultsChanged(total, final_result);
 920   SetTickmarks(tickmarks_);
 921   recently_sent_find_update_ = true;
 922   pp::CompletionCallback callback =
 923       timer_factory_.NewCallback(
 924           &OutOfProcessInstance::ResetRecentlySentFindUpdate);
 925   pp::Module::Get()->core()->CallOnMainThread(kFindResultCooldownMs,
 926                                               callback, 0);
 927 }
 928
 929 void OutOfProcessInstance::NotifySelectedFindResultChanged(
 930     int current_find_index) {
 931   DCHECK_GE(current_find_index, 0);
 932   SelectedFindResultChanged(current_find_index);
 933 }
 934
 935 void OutOfProcessInstance::GetDocumentPassword(
 936     pp::CompletionCallbackWithOutput<pp::Var> callback) {
 937   if (password_callback_) {
 938     NOTREACHED();
 939     return;
 940   }
 941
 942   password_callback_.reset(
 943       new pp::CompletionCallbackWithOutput<pp::Var>(callback));
 944   pp::VarDictionary message;
 945   message.Set(pp::Var(kType), pp::Var(kJSGetPasswordType));
 946   PostMessage(message);
 947 }
 948
 949 void OutOfProcessInstance::Alert(const std::string& message) {
 950   ModalDialog(this, "alert", message, std::string());
 951 }
 952
 953 bool OutOfProcessInstance::Confirm(const std::string& message) {
 954   pp::Var result = ModalDialog(this, "confirm", message, std::string());
 955   return result.is_bool() ? result.AsBool() : false;
 956 }
 957
 958 std::string OutOfProcessInstance::Prompt(const std::string& question,
 959                                          const std::string& default_answer) {
 960   pp::Var result = ModalDialog(this, "prompt", question, default_answer);
 961   return result.is_string() ? result.AsString() : std::string();
 962 }
 963
 964 std::string OutOfProcessInstance::GetURL() {
 965   return url_;
 966 }
 967
 968 void OutOfProcessInstance::Email(const std::string& to,
 969                                  const std::string& cc,
 970                                  const std::string& bcc,
 971                                  const std::string& subject,
 972                                  const std::string& body) {
 973   pp::VarDictionary message;
 974   message.Set(pp::Var(kType), pp::Var(kJSEmailType));
 975   message.Set(pp::Var(kJSEmailTo),
 976               pp::Var(net::EscapeUrlEncodedData(to, false)));
 977   message.Set(pp::Var(kJSEmailCc),
 978               pp::Var(net::EscapeUrlEncodedData(cc, false)));
 979   message.Set(pp::Var(kJSEmailBcc),
 980               pp::Var(net::EscapeUrlEncodedData(bcc, false)));
 981   message.Set(pp::Var(kJSEmailSubject),
 982               pp::Var(net::EscapeUrlEncodedData(subject, false)));
 983   message.Set(pp::Var(kJSEmailBody),
 984               pp::Var(net::EscapeUrlEncodedData(body, false)));
 985   PostMessage(message);
 986 }
 987
 988 void OutOfProcessInstance::Print() {
 989   if (!engine_->HasPermission(PDFEngine::PERMISSION_PRINT_LOW_QUALITY) &&
 990       !engine_->HasPermission(PDFEngine::PERMISSION_PRINT_HIGH_QUALITY)) {
 991     return;
 992   }
 993
 994   pp::CompletionCallback callback =
 995       print_callback_factory_.NewCallback(&OutOfProcessInstance::OnPrint);
 996   pp::Module::Get()->core()->CallOnMainThread(0, callback);
 997 }
 998
 999 void OutOfProcessInstance::OnPrint(int32_t) {
1000   pp::PDF::Print(this);
1001 }
1002
1003 void OutOfProcessInstance::SubmitForm(const std::string& url,
1004                                       const void* data,
1005                                       int length) {
1006   pp::URLRequestInfo request(this);
1007   request.SetURL(url);
1008   request.SetMethod("POST");
1009   request.AppendDataToBody(reinterpret_cast<const char*>(data), length);
1010
1011   pp::CompletionCallback callback =
1012       form_factory_.NewCallback(&OutOfProcessInstance::FormDidOpen);
1013   form_loader_ = CreateURLLoaderInternal();
1014   int rv = form_loader_.Open(request, callback);
1015   if (rv != PP_OK_COMPLETIONPENDING)
1016     callback.Run(rv);
1017 }
1018
1019 void OutOfProcessInstance::FormDidOpen(int32_t result) {
1020   // TODO: inform the user of success/failure.
1021   if (result != PP_OK) {
1022     NOTREACHED();
1023   }
1024 }
1025
1026 std::string OutOfProcessInstance::ShowFileSelectionDialog() {
1027   // Seems like very low priority to implement, since the pdf has no way to get
1028   // the file data anyways.  Javascript doesn't let you do this synchronously.
1029   NOTREACHED();
1030   return std::string();
1031 }
1032
1033 pp::URLLoader OutOfProcessInstance::CreateURLLoader() {
1034   if (full_) {
1035     if (!did_call_start_loading_) {
1036       did_call_start_loading_ = true;
1037       pp::PDF::DidStartLoading(this);
1038     }
1039
1040     // Disable save and print until the document is fully loaded, since they
1041     // would generate an incomplete document.  Need to do this each time we
1042     // call DidStartLoading since that resets the content restrictions.
1043     pp::PDF::SetContentRestriction(this, CONTENT_RESTRICTION_SAVE |
1044                                    CONTENT_RESTRICTION_PRINT);
1045   }
1046
1047   return CreateURLLoaderInternal();
1048 }
1049
1050 void OutOfProcessInstance::ScheduleCallback(int id, int delay_in_ms) {
1051   pp::CompletionCallback callback =
1052       timer_factory_.NewCallback(&OutOfProcessInstance::OnClientTimerFired);
1053   pp::Module::Get()->core()->CallOnMainThread(delay_in_ms, callback, id);
1054 }
1055
1056 void OutOfProcessInstance::SearchString(const base::char16* string,
1057                             const base::char16* term,
1058                             bool case_sensitive,
1059                             std::vector<SearchStringResult>* results) {
1060   PP_PrivateFindResult* pp_results;
1061   int count = 0;
1062   pp::PDF::SearchString(
1063       this,
1064       reinterpret_cast<const unsigned short*>(string),
1065       reinterpret_cast<const unsigned short*>(term),
1066       case_sensitive,
1067       &pp_results,
1068       &count);
1069
1070   results->resize(count);
1071   for (int i = 0; i < count; ++i) {
1072     (*results)[i].start_index = pp_results[i].start_index;
1073     (*results)[i].length = pp_results[i].length;
1074   }
1075
1076   pp::Memory_Dev memory;
1077   memory.MemFree(pp_results);
1078 }
1079
1080 void OutOfProcessInstance::DocumentPaintOccurred() {
1081 }
1082
1083 void OutOfProcessInstance::DocumentLoadComplete(int page_count) {
1084   // Clear focus state for OSK.
1085   FormTextFieldFocusChange(false);
1086
1087   DCHECK(document_load_state_ == LOAD_STATE_LOADING);
1088   document_load_state_ = LOAD_STATE_COMPLETE;
1089   UserMetricsRecordAction("PDF.LoadSuccess");
1090
1091   // Note: If we are in print preview mode the scroll location is retained
1092   // across document loads so we don't want to scroll again and override it.
1093   if (IsPrintPreview()) {
1094     AppendBlankPrintPreviewPages();
1095     OnGeometryChanged(0, 0);
1096   }
1097
1098   pp::VarDictionary named_destinations_message;
1099   pp::VarDictionary named_destinations = engine_->GetNamedDestinations();
1100   named_destinations_message.Set(pp::Var(kType),
1101                                  pp::Var(kJSSetNamedDestinationsType));
1102   named_destinations_message.Set(pp::Var(kJSNamedDestinations),
1103                                  pp::Var(named_destinations));
1104   PostMessage(named_destinations_message);
1105
1106   pp::VarDictionary bookmarks_message;
1107   bookmarks_message.Set(pp::Var(kType), pp::Var(kJSBookmarksType));
1108   bookmarks_message.Set(pp::Var(kJSBookmarks), engine_->GetBookmarks());
1109   PostMessage(bookmarks_message);
1110
1111   pp::VarDictionary progress_message;
1112   progress_message.Set(pp::Var(kType), pp::Var(kJSLoadProgressType));
1113   progress_message.Set(pp::Var(kJSProgressPercentage), pp::Var(100));
1114   PostMessage(progress_message);
1115
1116   if (!full_)
1117     return;
1118
1119   if (did_call_start_loading_) {
1120     pp::PDF::DidStopLoading(this);
1121     did_call_start_loading_ = false;
1122   }
1123
1124   int content_restrictions =
1125       CONTENT_RESTRICTION_CUT | CONTENT_RESTRICTION_PASTE;
1126   if (!engine_->HasPermission(PDFEngine::PERMISSION_COPY))
1127     content_restrictions |= CONTENT_RESTRICTION_COPY;
1128
1129   pp::PDF::SetContentRestriction(this, content_restrictions);
1130
1131   uma_.HistogramCustomCounts("PDF.PageCount", page_count,
1132                              1, 1000000, 50);
1133 }
1134
1135 void OutOfProcessInstance::RotateClockwise() {
1136   engine_->RotateClockwise();
1137 }
1138
1139 void OutOfProcessInstance::RotateCounterclockwise() {
1140   engine_->RotateCounterclockwise();
1141 }
1142
1143 void OutOfProcessInstance::PreviewDocumentLoadComplete() {
1144   if (preview_document_load_state_ != LOAD_STATE_LOADING ||
1145       preview_pages_info_.empty()) {
1146     return;
1147   }
1148
1149   preview_document_load_state_ = LOAD_STATE_COMPLETE;
1150
1151   int dest_page_index = preview_pages_info_.front().second;
1152   int src_page_index =
1153       ExtractPrintPreviewPageIndex(preview_pages_info_.front().first);
1154   if (src_page_index > 0 &&  dest_page_index > -1 && preview_engine_.get())
1155     engine_->AppendPage(preview_engine_.get(), dest_page_index);
1156
1157   preview_pages_info_.pop();
1158   // |print_preview_page_count_| is not updated yet. Do not load any
1159   // other preview pages till we get this information.
1160   if (print_preview_page_count_ == 0)
1161     return;
1162
1163   if (preview_pages_info_.size())
1164     LoadAvailablePreviewPage();
1165 }
1166
1167 void OutOfProcessInstance::DocumentLoadFailed() {
1168   DCHECK(document_load_state_ == LOAD_STATE_LOADING);
1169   UserMetricsRecordAction("PDF.LoadFailure");
1170
1171   if (did_call_start_loading_) {
1172     pp::PDF::DidStopLoading(this);
1173     did_call_start_loading_ = false;
1174   }
1175
1176   document_load_state_ = LOAD_STATE_FAILED;
1177   paint_manager_.InvalidateRect(pp::Rect(pp::Point(), plugin_size_));
1178
1179   // Send a progress value of -1 to indicate a failure.
1180   pp::VarDictionary message;
1181   message.Set(pp::Var(kType), pp::Var(kJSLoadProgressType));
1182   message.Set(pp::Var(kJSProgressPercentage), pp::Var(-1)) ;
1183   PostMessage(message);
1184 }
1185
1186 void OutOfProcessInstance::PreviewDocumentLoadFailed() {
1187   UserMetricsRecordAction("PDF.PreviewDocumentLoadFailure");
1188   if (preview_document_load_state_ != LOAD_STATE_LOADING ||
1189       preview_pages_info_.empty()) {
1190     return;
1191   }
1192
1193   preview_document_load_state_ = LOAD_STATE_FAILED;
1194   preview_pages_info_.pop();
1195
1196   if (preview_pages_info_.size())
1197     LoadAvailablePreviewPage();
1198 }
1199
1200 pp::Instance* OutOfProcessInstance::GetPluginInstance() {
1201   return this;
1202 }
1203
1204 void OutOfProcessInstance::DocumentHasUnsupportedFeature(
1205     const std::string& feature) {
1206   std::string metric("PDF_Unsupported_");
1207   metric += feature;
1208   if (!unsupported_features_reported_.count(metric)) {
1209     unsupported_features_reported_.insert(metric);
1210     UserMetricsRecordAction(metric);
1211   }
1212
1213   // Since we use an info bar, only do this for full frame plugins..
1214   if (!full_)
1215     return;
1216
1217   if (told_browser_about_unsupported_feature_)
1218     return;
1219   told_browser_about_unsupported_feature_ = true;
1220
1221   pp::PDF::HasUnsupportedFeature(this);
1222 }
1223
1224 void OutOfProcessInstance::DocumentLoadProgress(uint32 available,
1225                                                 uint32 doc_size) {
1226   double progress = 0.0;
1227   if (doc_size == 0) {
1228     // Document size is unknown. Use heuristics.
1229     // We'll make progress logarithmic from 0 to 100M.
1230     static const double kFactor = log(100000000.0) / 100.0;
1231     if (available > 0) {
1232       progress = log(static_cast<double>(available)) / kFactor;
1233       if (progress > 100.0)
1234         progress = 100.0;
1235     }
1236   } else {
1237     progress = 100.0 * static_cast<double>(available) / doc_size;
1238   }
1239
1240   // We send 100% load progress in DocumentLoadComplete.
1241   if (progress >= 100)
1242     return;
1243
1244   // Avoid sending too many progress messages over PostMessage.
1245   if (progress > last_progress_sent_ + 1) {
1246     last_progress_sent_ = progress;
1247     pp::VarDictionary message;
1248     message.Set(pp::Var(kType), pp::Var(kJSLoadProgressType));
1249     message.Set(pp::Var(kJSProgressPercentage), pp::Var(progress)) ;
1250     PostMessage(message);
1251   }
1252 }
1253
1254 void OutOfProcessInstance::FormTextFieldFocusChange(bool in_focus) {
1255   if (!text_input_.get())
1256     return;
1257   if (in_focus)
1258     text_input_->SetTextInputType(PP_TEXTINPUT_TYPE_DEV_TEXT);
1259   else
1260     text_input_->SetTextInputType(PP_TEXTINPUT_TYPE_DEV_NONE);
1261 }
1262
1263 void OutOfProcessInstance::ResetRecentlySentFindUpdate(int32_t /* unused */) {
1264   recently_sent_find_update_ = false;
1265 }
1266
1267 void OutOfProcessInstance::OnGeometryChanged(double old_zoom,
1268                                              float old_device_scale) {
1269   if (zoom_ != old_zoom || device_scale_ != old_device_scale)
1270     engine_->ZoomUpdated(zoom_ * device_scale_);
1271
1272   available_area_ = pp::Rect(plugin_size_);
1273   int doc_width = GetDocumentPixelWidth();
1274   if (doc_width < available_area_.width()) {
1275     available_area_.Offset((available_area_.width() - doc_width) / 2, 0);
1276     available_area_.set_width(doc_width);
1277   }
1278   int doc_height = GetDocumentPixelHeight();
1279   if (doc_height < available_area_.height()) {
1280     available_area_.set_height(doc_height);
1281   }
1282
1283   CalculateBackgroundParts();
1284   engine_->PageOffsetUpdated(available_area_.point());
1285   engine_->PluginSizeUpdated(available_area_.size());
1286
1287   if (!document_size_.GetArea())
1288     return;
1289   paint_manager_.InvalidateRect(pp::Rect(pp::Point(), plugin_size_));
1290 }
1291
1292 void OutOfProcessInstance::LoadUrl(const std::string& url) {
1293   LoadUrlInternal(url, &embed_loader_, &OutOfProcessInstance::DidOpen);
1294 }
1295
1296 void OutOfProcessInstance::LoadPreviewUrl(const std::string& url) {
1297   LoadUrlInternal(url, &embed_preview_loader_,
1298                   &OutOfProcessInstance::DidOpenPreview);
1299 }
1300
1301 void OutOfProcessInstance::LoadUrlInternal(
1302     const std::string& url,
1303     pp::URLLoader* loader,
1304     void (OutOfProcessInstance::* method)(int32_t)) {
1305   pp::URLRequestInfo request(this);
1306   request.SetURL(url);
1307   request.SetMethod("GET");
1308
1309   *loader = CreateURLLoaderInternal();
1310   pp::CompletionCallback callback = loader_factory_.NewCallback(method);
1311   int rv = loader->Open(request, callback);
1312   if (rv != PP_OK_COMPLETIONPENDING)
1313     callback.Run(rv);
1314 }
1315
1316 pp::URLLoader OutOfProcessInstance::CreateURLLoaderInternal() {
1317   pp::URLLoader loader(this);
1318
1319   const PPB_URLLoaderTrusted* trusted_interface =
1320       reinterpret_cast<const PPB_URLLoaderTrusted*>(
1321           pp::Module::Get()->GetBrowserInterface(
1322               PPB_URLLOADERTRUSTED_INTERFACE));
1323   if (trusted_interface)
1324     trusted_interface->GrantUniversalAccess(loader.pp_resource());
1325   return loader;
1326 }
1327
1328 void OutOfProcessInstance::SetZoom(double scale) {
1329   double old_zoom = zoom_;
1330   zoom_ = scale;
1331   OnGeometryChanged(old_zoom, device_scale_);
1332 }
1333
1334 std::string OutOfProcessInstance::GetLocalizedString(PP_ResourceString id) {
1335   pp::Var rv(pp::PDF::GetLocalizedString(this, id));
1336   if (!rv.is_string())
1337     return std::string();
1338
1339   return rv.AsString();
1340 }
1341
1342 void OutOfProcessInstance::AppendBlankPrintPreviewPages() {
1343   if (print_preview_page_count_ == 0)
1344     return;
1345   engine_->AppendBlankPages(print_preview_page_count_);
1346   if (preview_pages_info_.size() > 0)
1347     LoadAvailablePreviewPage();
1348 }
1349
1350 bool OutOfProcessInstance::IsPrintPreview() {
1351   return IsPrintPreviewUrl(url_);
1352 }
1353
1354 uint32 OutOfProcessInstance::GetBackgroundColor() {
1355   return background_color_;
1356 }
1357
1358 void OutOfProcessInstance::IsSelectingChanged(bool is_selecting) {
1359   pp::VarDictionary message;
1360   message.Set(kType, kJSSetIsSelectingType);
1361   message.Set(kJSIsSelecting, pp::Var(is_selecting));
1362   PostMessage(message);
1363 }
1364
1365 void OutOfProcessInstance::ProcessPreviewPageInfo(const std::string& url,
1366                                                   int dst_page_index) {
1367   if (!IsPrintPreview())
1368     return;
1369
1370   int src_page_index = ExtractPrintPreviewPageIndex(url);
1371   if (src_page_index < 1)
1372     return;
1373
1374   preview_pages_info_.push(std::make_pair(url, dst_page_index));
1375   LoadAvailablePreviewPage();
1376 }
1377
1378 void OutOfProcessInstance::LoadAvailablePreviewPage() {
1379   if (preview_pages_info_.size() <= 0 ||
1380       document_load_state_ != LOAD_STATE_COMPLETE) {
1381     return;
1382   }
1383
1384   std::string url = preview_pages_info_.front().first;
1385   int dst_page_index = preview_pages_info_.front().second;
1386   int src_page_index = ExtractPrintPreviewPageIndex(url);
1387   if (src_page_index < 1 ||
1388       dst_page_index >= print_preview_page_count_ ||
1389       preview_document_load_state_ == LOAD_STATE_LOADING) {
1390     return;
1391   }
1392
1393   preview_document_load_state_ = LOAD_STATE_LOADING;
1394   LoadPreviewUrl(url);
1395 }
1396
1397 void OutOfProcessInstance::UserMetricsRecordAction(
1398     const std::string& action) {
1399   // TODO(raymes): Move this function to PPB_UMA_Private.
1400   pp::PDF::UserMetricsRecordAction(this, pp::Var(action));
1401 }
1402
1403 pp::FloatPoint OutOfProcessInstance::BoundScrollOffsetToDocument(
1404     const pp::FloatPoint& scroll_offset) {
1405   float max_x = document_size_.width() * zoom_ - plugin_dip_size_.width();
1406   float x = std::max(std::min(scroll_offset.x(), max_x), 0.0f);
1407   float max_y = document_size_.height() * zoom_ - plugin_dip_size_.height();
1408   float y = std::max(std::min(scroll_offset.y(), max_y), 0.0f);
1409   return pp::FloatPoint(x, y);
1410 }
1411
1412 }  // namespace chrome_pdf