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