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| 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #include "chrome/renderer/printing/print_web_view_helper.h" | 5 #include "chrome/renderer/printing/print_web_view_helper.h" |
| 6 | 6 |
| 7 #include <string> | 7 #include <string> |
| 8 | 8 |
| 9 #include "base/auto_reset.h" | 9 #include "base/auto_reset.h" |
| 10 #include "base/command_line.h" | 10 #include "base/command_line.h" |
| 11 #include "base/json/json_writer.h" | 11 #include "base/json/json_writer.h" |
| 12 #include "base/logging.h" | 12 #include "base/logging.h" |
| 13 #include "base/message_loop/message_loop.h" | 13 #include "base/message_loop/message_loop.h" |
| 14 #include "base/metrics/histogram.h" | 14 #include "base/metrics/histogram.h" |
| 15 #include "base/process/process_handle.h" | 15 #include "base/process/process_handle.h" |
| 16 #include "base/strings/string_number_conversions.h" | 16 #include "base/strings/string_number_conversions.h" |
| 17 #include "base/strings/stringprintf.h" | 17 #include "base/strings/stringprintf.h" |
| 18 #include "base/strings/utf_string_conversions.h" | 18 #include "base/strings/utf_string_conversions.h" |
| 19 #include "chrome/common/chrome_switches.h" | 19 #include "chrome/common/chrome_switches.h" |
| 20 #include "chrome/common/print_messages.h" | 20 #include "chrome/common/print_messages.h" |
| 21 #include "chrome/common/render_messages.h" | 21 #include "chrome/common/render_messages.h" |
| 22 #include "chrome/renderer/prerender/prerender_helper.h" | 22 #include "chrome/renderer/prerender/prerender_helper.h" |
| 23 #include "content/public/common/web_preferences.h" |
| 23 #include "content/public/renderer/render_frame.h" | 24 #include "content/public/renderer/render_frame.h" |
| 24 #include "content/public/renderer/render_thread.h" | 25 #include "content/public/renderer/render_thread.h" |
| 25 #include "content/public/renderer/render_view.h" | 26 #include "content/public/renderer/render_view.h" |
| 26 #include "content/public/renderer/web_preferences.h" | |
| 27 #include "grit/browser_resources.h" | 27 #include "grit/browser_resources.h" |
| 28 #include "net/base/escape.h" | 28 #include "net/base/escape.h" |
| 29 #include "printing/metafile.h" | 29 #include "printing/metafile.h" |
| 30 #include "printing/metafile_impl.h" | 30 #include "printing/metafile_impl.h" |
| 31 #include "printing/units.h" | 31 #include "printing/units.h" |
| 32 #include "skia/ext/vector_platform_device_skia.h" | 32 #include "skia/ext/vector_platform_device_skia.h" |
| 33 #include "third_party/WebKit/public/platform/WebSize.h" | 33 #include "third_party/WebKit/public/platform/WebSize.h" |
| 34 #include "third_party/WebKit/public/platform/WebURLRequest.h" | 34 #include "third_party/WebKit/public/platform/WebURLRequest.h" |
| 35 #include "third_party/WebKit/public/web/WebConsoleMessage.h" | 35 #include "third_party/WebKit/public/web/WebConsoleMessage.h" |
| 36 #include "third_party/WebKit/public/web/WebDocument.h" | 36 #include "third_party/WebKit/public/web/WebDocument.h" |
| 37 #include "third_party/WebKit/public/web/WebElement.h" | 37 #include "third_party/WebKit/public/web/WebElement.h" |
| 38 #include "third_party/WebKit/public/web/WebFrameClient.h" | 38 #include "third_party/WebKit/public/web/WebFrameClient.h" |
| 39 #include "third_party/WebKit/public/web/WebLocalFrame.h" | 39 #include "third_party/WebKit/public/web/WebLocalFrame.h" |
| 40 #include "third_party/WebKit/public/web/WebPlugin.h" | 40 #include "third_party/WebKit/public/web/WebPlugin.h" |
| 41 #include "third_party/WebKit/public/web/WebPluginDocument.h" | 41 #include "third_party/WebKit/public/web/WebPluginDocument.h" |
| 42 #include "third_party/WebKit/public/web/WebPrintParams.h" | 42 #include "third_party/WebKit/public/web/WebPrintParams.h" |
| 43 #include "third_party/WebKit/public/web/WebPrintScalingOption.h" | 43 #include "third_party/WebKit/public/web/WebPrintScalingOption.h" |
| 44 #include "third_party/WebKit/public/web/WebScriptSource.h" | 44 #include "third_party/WebKit/public/web/WebScriptSource.h" |
| 45 #include "third_party/WebKit/public/web/WebSettings.h" | 45 #include "third_party/WebKit/public/web/WebSettings.h" |
| 46 #include "third_party/WebKit/public/web/WebView.h" | 46 #include "third_party/WebKit/public/web/WebView.h" |
| 47 #include "third_party/WebKit/public/web/WebViewClient.h" | 47 #include "third_party/WebKit/public/web/WebViewClient.h" |
| 48 #include "ui/base/resource/resource_bundle.h" | 48 #include "ui/base/resource/resource_bundle.h" |
| 49 #include "webkit/common/webpreferences.h" | 49 |
| 50 using content::WebPreferences; |
| 50 | 51 |
| 51 namespace printing { | 52 namespace printing { |
| 52 | 53 |
| 53 namespace { | 54 namespace { |
| 54 | 55 |
| 55 enum PrintPreviewHelperEvents { | 56 enum PrintPreviewHelperEvents { |
| 56 PREVIEW_EVENT_REQUESTED, | 57 PREVIEW_EVENT_REQUESTED, |
| 57 PREVIEW_EVENT_CACHE_HIT, // Unused | 58 PREVIEW_EVENT_CACHE_HIT, // Unused |
| 58 PREVIEW_EVENT_CREATE_DOCUMENT, | 59 PREVIEW_EVENT_CREATE_DOCUMENT, |
| 59 PREVIEW_EVENT_NEW_SETTINGS, // Unused | 60 PREVIEW_EVENT_NEW_SETTINGS, // Unused |
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| 525 } | 526 } |
| 526 return frame->printPage(page_number, canvas); | 527 return frame->printPage(page_number, canvas); |
| 527 } | 528 } |
| 528 | 529 |
| 529 // Class that calls the Begin and End print functions on the frame and changes | 530 // Class that calls the Begin and End print functions on the frame and changes |
| 530 // the size of the view temporarily to support full page printing.. | 531 // the size of the view temporarily to support full page printing.. |
| 531 class PrepareFrameAndViewForPrint : public blink::WebViewClient, | 532 class PrepareFrameAndViewForPrint : public blink::WebViewClient, |
| 532 public blink::WebFrameClient { | 533 public blink::WebFrameClient { |
| 533 public: | 534 public: |
| 534 PrepareFrameAndViewForPrint(const PrintMsg_Print_Params& params, | 535 PrepareFrameAndViewForPrint(const PrintMsg_Print_Params& params, |
| 536 content::RenderView* render_view, |
| 535 blink::WebLocalFrame* frame, | 537 blink::WebLocalFrame* frame, |
| 536 const blink::WebNode& node, | 538 const blink::WebNode& node, |
| 537 bool ignore_css_margins); | 539 bool ignore_css_margins); |
| 538 virtual ~PrepareFrameAndViewForPrint(); | 540 virtual ~PrepareFrameAndViewForPrint(); |
| 539 | 541 |
| 540 // Optional. Replaces |frame_| with selection if needed. Will call |on_ready| | 542 // Optional. Replaces |frame_| with selection if needed. Will call |on_ready| |
| 541 // when completed. | 543 // when completed. |
| 542 void CopySelectionIfNeeded(const WebPreferences& preferences, | 544 void CopySelectionIfNeeded(const WebPreferences& preferences, |
| 543 const base::Closure& on_ready); | 545 const base::Closure& on_ready); |
| 544 | 546 |
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| 581 virtual void frameDetached(blink::WebFrame* frame); | 583 virtual void frameDetached(blink::WebFrame* frame); |
| 582 | 584 |
| 583 private: | 585 private: |
| 584 void CallOnReady(); | 586 void CallOnReady(); |
| 585 void ResizeForPrinting(); | 587 void ResizeForPrinting(); |
| 586 void RestoreSize(); | 588 void RestoreSize(); |
| 587 void CopySelection(const WebPreferences& preferences); | 589 void CopySelection(const WebPreferences& preferences); |
| 588 | 590 |
| 589 base::WeakPtrFactory<PrepareFrameAndViewForPrint> weak_ptr_factory_; | 591 base::WeakPtrFactory<PrepareFrameAndViewForPrint> weak_ptr_factory_; |
| 590 | 592 |
| 593 content::RenderView* render_view_; |
| 591 FrameReference frame_; | 594 FrameReference frame_; |
| 592 blink::WebNode node_to_print_; | 595 blink::WebNode node_to_print_; |
| 593 bool owns_web_view_; | 596 bool owns_web_view_; |
| 594 blink::WebPrintParams web_print_params_; | 597 blink::WebPrintParams web_print_params_; |
| 595 gfx::Size prev_view_size_; | 598 gfx::Size prev_view_size_; |
| 596 gfx::Size prev_scroll_offset_; | 599 gfx::Size prev_scroll_offset_; |
| 597 int expected_pages_count_; | 600 int expected_pages_count_; |
| 598 base::Closure on_ready_; | 601 base::Closure on_ready_; |
| 599 bool should_print_backgrounds_; | 602 bool should_print_backgrounds_; |
| 600 bool should_print_selection_only_; | 603 bool should_print_selection_only_; |
| 601 bool is_printing_started_; | 604 bool is_printing_started_; |
| 602 | 605 |
| 603 DISALLOW_COPY_AND_ASSIGN(PrepareFrameAndViewForPrint); | 606 DISALLOW_COPY_AND_ASSIGN(PrepareFrameAndViewForPrint); |
| 604 }; | 607 }; |
| 605 | 608 |
| 606 PrepareFrameAndViewForPrint::PrepareFrameAndViewForPrint( | 609 PrepareFrameAndViewForPrint::PrepareFrameAndViewForPrint( |
| 607 const PrintMsg_Print_Params& params, | 610 const PrintMsg_Print_Params& params, |
| 611 content::RenderView* render_view, |
| 608 blink::WebLocalFrame* frame, | 612 blink::WebLocalFrame* frame, |
| 609 const blink::WebNode& node, | 613 const blink::WebNode& node, |
| 610 bool ignore_css_margins) | 614 bool ignore_css_margins) |
| 611 : weak_ptr_factory_(this), | 615 : weak_ptr_factory_(this), |
| 616 render_view_(render_view), |
| 612 frame_(frame), | 617 frame_(frame), |
| 613 node_to_print_(node), | 618 node_to_print_(node), |
| 614 owns_web_view_(false), | 619 owns_web_view_(false), |
| 615 expected_pages_count_(0), | 620 expected_pages_count_(0), |
| 616 should_print_backgrounds_(params.should_print_backgrounds), | 621 should_print_backgrounds_(params.should_print_backgrounds), |
| 617 should_print_selection_only_(params.selection_only), | 622 should_print_selection_only_(params.selection_only), |
| 618 is_printing_started_(false) { | 623 is_printing_started_(false) { |
| 619 PrintMsg_Print_Params print_params = params; | 624 PrintMsg_Print_Params print_params = params; |
| 620 if (!should_print_selection_only_ || | 625 if (!should_print_selection_only_ || |
| 621 !PrintingNodeOrPdfFrame(frame, node_to_print_)) { | 626 !PrintingNodeOrPdfFrame(frame, node_to_print_)) { |
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| 689 RestoreSize(); | 694 RestoreSize(); |
| 690 // Create a new WebView with the same settings as the current display one. | 695 // Create a new WebView with the same settings as the current display one. |
| 691 // Except that we disable javascript (don't want any active content running | 696 // Except that we disable javascript (don't want any active content running |
| 692 // on the page). | 697 // on the page). |
| 693 WebPreferences prefs = preferences; | 698 WebPreferences prefs = preferences; |
| 694 prefs.javascript_enabled = false; | 699 prefs.javascript_enabled = false; |
| 695 prefs.java_enabled = false; | 700 prefs.java_enabled = false; |
| 696 | 701 |
| 697 blink::WebView* web_view = blink::WebView::create(this); | 702 blink::WebView* web_view = blink::WebView::create(this); |
| 698 owns_web_view_ = true; | 703 owns_web_view_ = true; |
| 699 content::ApplyWebPreferences(prefs, web_view); | 704 render_view_->ApplyWebPreferences(prefs); |
| 700 web_view->setMainFrame(blink::WebLocalFrame::create(this)); | 705 web_view->setMainFrame(blink::WebLocalFrame::create(this)); |
| 701 frame_.Reset(web_view->mainFrame()->toWebLocalFrame()); | 706 frame_.Reset(web_view->mainFrame()->toWebLocalFrame()); |
| 702 node_to_print_.reset(); | 707 node_to_print_.reset(); |
| 703 | 708 |
| 704 // When loading is done this will call didStopLoading() and that will do the | 709 // When loading is done this will call didStopLoading() and that will do the |
| 705 // actual printing. | 710 // actual printing. |
| 706 frame()->loadRequest(blink::WebURLRequest(GURL(url_str))); | 711 frame()->loadRequest(blink::WebURLRequest(GURL(url_str))); |
| 707 } | 712 } |
| 708 | 713 |
| 709 bool PrepareFrameAndViewForPrint::allowsBrokenNullLayerTreeView() const { | 714 bool PrepareFrameAndViewForPrint::allowsBrokenNullLayerTreeView() const { |
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| 1059 // Don't reset loading frame or WebKit will fail assert. Just retry when | 1064 // Don't reset loading frame or WebKit will fail assert. Just retry when |
| 1060 // current selection is loaded. | 1065 // current selection is loaded. |
| 1061 if (prep_frame_view_ && prep_frame_view_->IsLoadingSelection()) { | 1066 if (prep_frame_view_ && prep_frame_view_->IsLoadingSelection()) { |
| 1062 reset_prep_frame_view_ = true; | 1067 reset_prep_frame_view_ = true; |
| 1063 return; | 1068 return; |
| 1064 } | 1069 } |
| 1065 | 1070 |
| 1066 const PrintMsg_Print_Params& print_params = print_pages_params_->params; | 1071 const PrintMsg_Print_Params& print_params = print_pages_params_->params; |
| 1067 prep_frame_view_.reset( | 1072 prep_frame_view_.reset( |
| 1068 new PrepareFrameAndViewForPrint(print_params, | 1073 new PrepareFrameAndViewForPrint(print_params, |
| 1074 render_view(), |
| 1069 print_preview_context_.source_frame(), | 1075 print_preview_context_.source_frame(), |
| 1070 print_preview_context_.source_node(), | 1076 print_preview_context_.source_node(), |
| 1071 ignore_css_margins_)); | 1077 ignore_css_margins_)); |
| 1072 prep_frame_view_->CopySelectionIfNeeded( | 1078 prep_frame_view_->CopySelectionIfNeeded( |
| 1073 render_view()->GetWebkitPreferences(), | 1079 render_view()->GetWebkitPreferences(), |
| 1074 base::Bind(&PrintWebViewHelper::OnFramePreparedForPreviewDocument, | 1080 base::Bind(&PrintWebViewHelper::OnFramePreparedForPreviewDocument, |
| 1075 base::Unretained(this))); | 1081 base::Unretained(this))); |
| 1076 } | 1082 } |
| 1077 | 1083 |
| 1078 void PrintWebViewHelper::OnFramePreparedForPreviewDocument() { | 1084 void PrintWebViewHelper::OnFramePreparedForPreviewDocument() { |
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| 1449 int* number_of_pages) { | 1455 int* number_of_pages) { |
| 1450 DCHECK(frame); | 1456 DCHECK(frame); |
| 1451 bool fit_to_paper_size = !(PrintingNodeOrPdfFrame(frame, node)); | 1457 bool fit_to_paper_size = !(PrintingNodeOrPdfFrame(frame, node)); |
| 1452 if (!InitPrintSettings(fit_to_paper_size)) { | 1458 if (!InitPrintSettings(fit_to_paper_size)) { |
| 1453 notify_browser_of_print_failure_ = false; | 1459 notify_browser_of_print_failure_ = false; |
| 1454 Send(new PrintHostMsg_ShowInvalidPrinterSettingsError(routing_id())); | 1460 Send(new PrintHostMsg_ShowInvalidPrinterSettingsError(routing_id())); |
| 1455 return false; | 1461 return false; |
| 1456 } | 1462 } |
| 1457 | 1463 |
| 1458 const PrintMsg_Print_Params& params = print_pages_params_->params; | 1464 const PrintMsg_Print_Params& params = print_pages_params_->params; |
| 1459 PrepareFrameAndViewForPrint prepare(params, frame, node, ignore_css_margins_); | 1465 PrepareFrameAndViewForPrint prepare( |
| 1466 params, render_view(), frame, node, ignore_css_margins_); |
| 1460 prepare.StartPrinting(); | 1467 prepare.StartPrinting(); |
| 1461 | 1468 |
| 1462 Send(new PrintHostMsg_DidGetDocumentCookie(routing_id(), | 1469 Send(new PrintHostMsg_DidGetDocumentCookie(routing_id(), |
| 1463 params.document_cookie)); | 1470 params.document_cookie)); |
| 1464 *number_of_pages = prepare.GetExpectedPageCount(); | 1471 *number_of_pages = prepare.GetExpectedPageCount(); |
| 1465 return true; | 1472 return true; |
| 1466 } | 1473 } |
| 1467 | 1474 |
| 1468 bool PrintWebViewHelper::UpdatePrintSettings( | 1475 bool PrintWebViewHelper::UpdatePrintSettings( |
| 1469 blink::WebLocalFrame* frame, | 1476 blink::WebLocalFrame* frame, |
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| 1589 print_pages_params_->params.print_scaling_option = scaling_option; | 1596 print_pages_params_->params.print_scaling_option = scaling_option; |
| 1590 return (print_settings.params.dpi && print_settings.params.document_cookie); | 1597 return (print_settings.params.dpi && print_settings.params.document_cookie); |
| 1591 } | 1598 } |
| 1592 | 1599 |
| 1593 bool PrintWebViewHelper::RenderPagesForPrint(blink::WebLocalFrame* frame, | 1600 bool PrintWebViewHelper::RenderPagesForPrint(blink::WebLocalFrame* frame, |
| 1594 const blink::WebNode& node) { | 1601 const blink::WebNode& node) { |
| 1595 if (!frame || prep_frame_view_) | 1602 if (!frame || prep_frame_view_) |
| 1596 return false; | 1603 return false; |
| 1597 const PrintMsg_PrintPages_Params& params = *print_pages_params_; | 1604 const PrintMsg_PrintPages_Params& params = *print_pages_params_; |
| 1598 const PrintMsg_Print_Params& print_params = params.params; | 1605 const PrintMsg_Print_Params& print_params = params.params; |
| 1599 prep_frame_view_.reset( | 1606 prep_frame_view_.reset(new PrepareFrameAndViewForPrint( |
| 1600 new PrepareFrameAndViewForPrint(print_params, frame, node, | 1607 print_params, render_view(), frame, node, ignore_css_margins_)); |
| 1601 ignore_css_margins_)); | |
| 1602 DCHECK(!print_pages_params_->params.selection_only || | 1608 DCHECK(!print_pages_params_->params.selection_only || |
| 1603 print_pages_params_->pages.empty()); | 1609 print_pages_params_->pages.empty()); |
| 1604 prep_frame_view_->CopySelectionIfNeeded( | 1610 prep_frame_view_->CopySelectionIfNeeded( |
| 1605 render_view()->GetWebkitPreferences(), | 1611 render_view()->GetWebkitPreferences(), |
| 1606 base::Bind(&PrintWebViewHelper::OnFramePreparedForPrintPages, | 1612 base::Bind(&PrintWebViewHelper::OnFramePreparedForPrintPages, |
| 1607 base::Unretained(this))); | 1613 base::Unretained(this))); |
| 1608 return true; | 1614 return true; |
| 1609 } | 1615 } |
| 1610 | 1616 |
| 1611 #if defined(OS_POSIX) | 1617 #if defined(OS_POSIX) |
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| 2022 } | 2028 } |
| 2023 | 2029 |
| 2024 void PrintWebViewHelper::PrintPreviewContext::ClearContext() { | 2030 void PrintWebViewHelper::PrintPreviewContext::ClearContext() { |
| 2025 prep_frame_view_.reset(); | 2031 prep_frame_view_.reset(); |
| 2026 metafile_.reset(); | 2032 metafile_.reset(); |
| 2027 pages_to_render_.clear(); | 2033 pages_to_render_.clear(); |
| 2028 error_ = PREVIEW_ERROR_NONE; | 2034 error_ = PREVIEW_ERROR_NONE; |
| 2029 } | 2035 } |
| 2030 | 2036 |
| 2031 } // namespace printing | 2037 } // namespace printing |
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