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Diffstat (limited to 'xfa_test/pdf/instance.h')
| -rw-r--r-- | xfa_test/pdf/instance.h | 531 |
1 files changed, 0 insertions, 531 deletions
diff --git a/xfa_test/pdf/instance.h b/xfa_test/pdf/instance.h deleted file mode 100644 index d39ba407c9..0000000000 --- a/xfa_test/pdf/instance.h +++ /dev/null @@ -1,531 +0,0 @@ -// Copyright (c) 2012 The Chromium Authors. All rights reserved. -// Use of this source code is governed by a BSD-style license that can be -// found in the LICENSE file. - -#ifndef PDF_INSTANCE_H_ -#define PDF_INSTANCE_H_ - -#include <queue> -#include <set> -#include <string> -#include <utility> -#include <vector> - -#include "base/memory/scoped_ptr.h" -#include "pdf/button.h" -#include "pdf/fading_controls.h" -#include "pdf/page_indicator.h" -#include "pdf/paint_manager.h" -#include "pdf/pdf_engine.h" -#include "pdf/preview_mode_client.h" -#include "pdf/progress_control.h" -#include "pdf/thumbnail_control.h" - -#include "ppapi/c/private/ppb_pdf.h" -#include "ppapi/cpp/dev/printing_dev.h" -#include "ppapi/cpp/dev/scriptable_object_deprecated.h" -#include "ppapi/cpp/dev/scrollbar_dev.h" -#include "ppapi/cpp/dev/selection_dev.h" -#include "ppapi/cpp/dev/widget_client_dev.h" -#include "ppapi/cpp/dev/zoom_dev.h" -#include "ppapi/cpp/graphics_2d.h" -#include "ppapi/cpp/image_data.h" -#include "ppapi/cpp/input_event.h" -#include "ppapi/cpp/private/find_private.h" -#include "ppapi/cpp/private/instance_private.h" -#include "ppapi/cpp/private/var_private.h" -#include "ppapi/cpp/url_loader.h" -#include "ppapi/utility/completion_callback_factory.h" - -namespace pp { -class TextInput_Dev; -} - -namespace chrome_pdf { - -struct ToolbarButtonInfo; - -class Instance : public pp::InstancePrivate, - public pp::Find_Private, - public pp::Printing_Dev, - public pp::Selection_Dev, - public pp::WidgetClient_Dev, - public pp::Zoom_Dev, - public PaintManager::Client, - public PDFEngine::Client, - public PreviewModeClient::Client, - public ControlOwner { - public: - explicit Instance(PP_Instance instance); - virtual ~Instance(); - - // pp::Instance implementation. - virtual bool Init(uint32_t argc, - const char* argn[], - const char* argv[]) override; - virtual bool HandleDocumentLoad(const pp::URLLoader& loader) override; - virtual bool HandleInputEvent(const pp::InputEvent& event) override; - virtual void DidChangeView(const pp::View& view) override; - virtual pp::Var GetInstanceObject() override; - - // pp::Find_Private implementation. - virtual bool StartFind(const std::string& text, bool case_sensitive) override; - virtual void SelectFindResult(bool forward) override; - virtual void StopFind() override; - - // pp::PaintManager::Client implementation. - virtual void OnPaint(const std::vector<pp::Rect>& paint_rects, - std::vector<PaintManager::ReadyRect>* ready, - std::vector<pp::Rect>* pending) override; - - // pp::Printing_Dev implementation. - virtual uint32_t QuerySupportedPrintOutputFormats() override; - virtual int32_t PrintBegin( - const PP_PrintSettings_Dev& print_settings) override; - virtual pp::Resource PrintPages( - const PP_PrintPageNumberRange_Dev* page_ranges, - uint32_t page_range_count) override; - virtual void PrintEnd() override; - virtual bool IsPrintScalingDisabled() override; - - // pp::Private implementation. - virtual pp::Var GetLinkAtPosition(const pp::Point& point); - - // PPP_Selection_Dev implementation. - virtual pp::Var GetSelectedText(bool html) override; - - // WidgetClient_Dev implementation. - virtual void InvalidateWidget(pp::Widget_Dev widget, - const pp::Rect& dirty_rect) override; - virtual void ScrollbarValueChanged(pp::Scrollbar_Dev scrollbar, - uint32_t value) override; - virtual void ScrollbarOverlayChanged(pp::Scrollbar_Dev scrollbar, - bool overlay) override; - - // pp::Zoom_Dev implementation. - virtual void Zoom(double scale, bool text_only) override; - void ZoomChanged(double factor); // Override. - - void FlushCallback(int32_t result); - void DidOpen(int32_t result); - void DidOpenPreview(int32_t result); - // If the given widget intersects the rectangle, paints it and adds the - // rect to ready. - void PaintIfWidgetIntersects(pp::Widget_Dev* widget, - const pp::Rect& rect, - std::vector<PaintManager::ReadyRect>* ready, - std::vector<pp::Rect>* pending); - - // Called when the timer is fired. - void OnTimerFired(int32_t); - void OnClientTimerFired(int32_t id); - - // Called when the control timer is fired. - void OnControlTimerFired(int32_t, - const uint32& control_id, - const uint32& timer_id); - - // Called to print without re-entrancy issues. - void OnPrint(int32_t); - - // PDFEngine::Client implementation. - virtual void DocumentSizeUpdated(const pp::Size& size); - virtual void Invalidate(const pp::Rect& rect); - virtual void Scroll(const pp::Point& point); - virtual void ScrollToX(int position); - virtual void ScrollToY(int position); - virtual void ScrollToPage(int page); - virtual void NavigateTo(const std::string& url, bool open_in_new_tab); - virtual void UpdateCursor(PP_CursorType_Dev cursor); - virtual void UpdateTickMarks(const std::vector<pp::Rect>& tickmarks); - virtual void NotifyNumberOfFindResultsChanged(int total, bool final_result); - virtual void NotifySelectedFindResultChanged(int current_find_index); - virtual void GetDocumentPassword( - pp::CompletionCallbackWithOutput<pp::Var> callback); - virtual void Alert(const std::string& message); - virtual bool Confirm(const std::string& message); - virtual std::string Prompt(const std::string& question, - const std::string& default_answer); - virtual std::string GetURL(); - virtual void Email(const std::string& to, - const std::string& cc, - const std::string& bcc, - const std::string& subject, - const std::string& body); - virtual void Print(); - virtual void SubmitForm(const std::string& url, - const void* data, - int length); - virtual std::string ShowFileSelectionDialog(); - virtual pp::URLLoader CreateURLLoader(); - virtual void ScheduleCallback(int id, int delay_in_ms); - virtual void SearchString(const base::char16* string, - const base::char16* term, - bool case_sensitive, - std::vector<SearchStringResult>* results); - virtual void DocumentPaintOccurred(); - virtual void DocumentLoadComplete(int page_count); - virtual void DocumentLoadFailed(); - virtual pp::Instance* GetPluginInstance(); - virtual void DocumentHasUnsupportedFeature(const std::string& feature); - virtual void DocumentLoadProgress(uint32 available, uint32 doc_size); - virtual void FormTextFieldFocusChange(bool in_focus); - virtual bool IsPrintPreview(); - - // ControlOwner implementation. - virtual void OnEvent(uint32 control_id, uint32 event_id, void* data); - virtual void Invalidate(uint32 control_id, const pp::Rect& rc); - virtual uint32 ScheduleTimer(uint32 control_id, uint32 timeout_ms); - virtual void SetEventCapture(uint32 control_id, bool set_capture); - virtual void SetCursor(uint32 control_id, PP_CursorType_Dev cursor_type); - virtual pp::Instance* GetInstance(); - - bool dont_paint() const { return dont_paint_; } - void set_dont_paint(bool dont_paint) { dont_paint_ = dont_paint; } - - // Called by PDFScriptableObject. - bool HasScriptableMethod(const pp::Var& method, pp::Var* exception); - pp::Var CallScriptableMethod(const pp::Var& method, - const std::vector<pp::Var>& args, - pp::Var* exception); - - // PreviewModeClient::Client implementation. - virtual void PreviewDocumentLoadComplete() override; - virtual void PreviewDocumentLoadFailed() override; - - // Helper functions for implementing PPP_PDF. - void RotateClockwise(); - void RotateCounterclockwise(); - - private: - // Called whenever the plugin geometry changes to update the location of the - // scrollbars, background parts, and notifies the pdf engine. - void OnGeometryChanged(double old_zoom, float old_device_scale); - - // Runs the given JS callback given in |callback|. - void RunCallback(int32_t, pp::Var callback); - - void CreateHorizontalScrollbar(); - void CreateVerticalScrollbar(); - void DestroyHorizontalScrollbar(); - void DestroyVerticalScrollbar(); - - // Returns the thickness of a scrollbar. This returns the thickness when it's - // shown, so for overlay scrollbars it'll still be non-zero. - int GetScrollbarThickness(); - - // Returns the space we need to reserve for the scrollbar in the plugin area. - // If overlay scrollbars are used, this will be 0. - int GetScrollbarReservedThickness(); - - // Returns true if overlay scrollbars are in use. - bool IsOverlayScrollbar(); - - // Figures out the location of any background rectangles (i.e. those that - // aren't painted by the PDF engine). - void CalculateBackgroundParts(); - - // Computes document width/height in device pixels, based on current zoom and - // device scale - int GetDocumentPixelWidth() const; - int GetDocumentPixelHeight() const; - - // Draws a rectangle with the specified dimensions and color in our buffer. - void FillRect(const pp::Rect& rect, uint32 color); - - std::vector<pp::ImageData> GetThumbnailResources(); - std::vector<pp::ImageData> GetProgressBarResources(pp::ImageData* background); - - void CreateToolbar(const ToolbarButtonInfo* tb_info, size_t size); - int GetToolbarRightOffset(); - int GetToolbarBottomOffset(); - void CreateProgressBar(); - void ConfigureProgressBar(); - void CreateThumbnails(); - void CreatePageIndicator(bool always_visible); - void ConfigurePageIndicator(); - - void PaintOverlayControl(Control* ctrl, - pp::ImageData* image_data, - std::vector<PaintManager::ReadyRect>* ready); - - void LoadUrl(const std::string& url); - void LoadPreviewUrl(const std::string& url); - void LoadUrlInternal(const std::string& url, pp::URLLoader* loader, - void (Instance::* method)(int32_t)); - - // Creates a URL loader and allows it to access all urls, i.e. not just the - // frame's origin. - pp::URLLoader CreateURLLoaderInternal(); - - // Figure out the initial page to display based on #page=N and #nameddest=foo - // in the |url_|. - // Returns -1 if there is no valid fragment. The returned value is 0-based, - // whereas page=N is 1-based. - int GetInitialPage(const std::string& url); - - void UpdateToolbarPosition(bool invalidate); - void UpdateProgressBarPosition(bool invalidate); - void UpdatePageIndicatorPosition(bool invalidate); - - void FormDidOpen(int32_t result); - - std::string GetLocalizedString(PP_ResourceString id); - - void UserMetricsRecordAction(const std::string& action); - - void SaveAs(); - - enum ZoomMode { - ZOOM_SCALE, // Standard zooming mode, resize will not affect it. - ZOOM_FIT_TO_WIDTH, // Maintain fit to width on resize. - ZOOM_FIT_TO_PAGE, // Maintain fit to page on resize. - ZOOM_AUTO // Maintain the default auto fitting mode on resize. - }; - - enum DocumentLoadState { - LOAD_STATE_LOADING, - LOAD_STATE_COMPLETE, - LOAD_STATE_FAILED, - }; - - // Set new zoom mode and scale. Scale will be ignored if mode != ZOOM_SCALE. - void SetZoom(ZoomMode zoom_mode, double scale); - - // Updates internal zoom scale based on the plugin/document geometry and - // current mode. - void UpdateZoomScale(); - - // Simulates how Chrome "snaps" zooming up/down to the next nearest zoom level - // when the previous zoom level wasn't an integer. We do this so that - // pressing the zoom buttons has the same effect as the menu buttons, even if - // we start from a non-standard zoom level because of fit-width or fit-height. - double CalculateZoom(uint32 control_id) const; - - pp::ImageData CreateResourceImage(PP_ResourceImage image_id); - - void DrawText(const pp::Point& top_center, PP_ResourceString id); - - // Set print preview mode, where the current PDF document is reduced to - // only one page, and then extended to |page_count| pages with - // |page_count| - 1 blank pages. - void SetPrintPreviewMode(int page_count); - - // Returns the page number to be displayed in the page indicator. If the - // plugin is running within print preview, the displayed number might be - // different from the index of the displayed page. - int GetPageNumberToDisplay(); - - // Process the preview page data information. |src_url| specifies the preview - // page data location. The |src_url| is in the format: - // chrome://print/id/page_number/print.pdf - // |dst_page_index| specifies the blank page index that needs to be replaced - // with the new page data. - void ProcessPreviewPageInfo(const std::string& src_url, int dst_page_index); - // Load the next available preview page into the blank page. - void LoadAvailablePreviewPage(); - - // Enables autoscroll using origin as a neutral (center) point. - void EnableAutoscroll(const pp::Point& origin); - // Disables autoscroll and returns to normal functionality. - void DisableAutoscroll(); - // Calculate autoscroll info and return proper mouse pointer and scroll - // andjustments. - PP_CursorType_Dev CalculateAutoscroll(const pp::Point& mouse_pos); - - void ConfigureNumberImageGenerator(); - - NumberImageGenerator* number_image_generator(); - - int GetScaled(int x) const; - - pp::ImageData image_data_; - // Used when the plugin is embedded in a page and we have to create the loader - // ourself. - pp::CompletionCallbackFactory<Instance> loader_factory_; - pp::URLLoader embed_loader_; - pp::URLLoader embed_preview_loader_; - - scoped_ptr<pp::Scrollbar_Dev> h_scrollbar_; - scoped_ptr<pp::Scrollbar_Dev> v_scrollbar_; - int32 valid_v_range_; - - PP_CursorType_Dev cursor_; // The current cursor. - - // Used when selecting and dragging beyond the visible portion, in which case - // we want to scroll the document. - bool timer_pending_; - pp::MouseInputEvent last_mouse_event_; - pp::CompletionCallbackFactory<Instance> timer_factory_; - uint32 current_timer_id_; - - // Size, in pixels, of plugin rectangle. - pp::Size plugin_size_; - // Size, in DIPs, of plugin rectangle. - pp::Size plugin_dip_size_; - // Remaining area, in pixels, to render the pdf in after accounting for - // scrollbars/toolbars and horizontal centering. - pp::Rect available_area_; - // Size of entire document in pixels (i.e. if each page is 800 pixels high and - // there are 10 pages, the height will be 8000). - pp::Size document_size_; - - double zoom_; // Current zoom factor. - - float device_scale_; // Current device scale factor. - bool printing_enabled_; - bool hidpi_enabled_; - // True if the plugin is full-page. - bool full_; - // Zooming mode (none, fit to width, fit to height) - ZoomMode zoom_mode_; - - // If true, this means we told the RenderView that we're starting a network - // request so that it can start the throbber. We will tell it again once the - // document finishes loading. - bool did_call_start_loading_; - - // Hold off on painting invalidated requests while this flag is true. - bool dont_paint_; - - // Indicates if plugin is in autoscroll mode. - bool is_autoscroll_; - // Rect for autoscroll anchor. - pp::Rect autoscroll_rect_; - // Image of the autoscroll anchor and its background. - pp::ImageData autoscroll_anchor_; - // Autoscrolling deltas in pixels. - int autoscroll_x_; - int autoscroll_y_; - - // Thickness of a scrollbar. - int scrollbar_thickness_; - - // Reserved thickness of a scrollbar. This is how much space the scrollbar - // takes from the available area. 0 for overlay. - int scrollbar_reserved_thickness_; - - // Used to remember which toolbar is in use - const ToolbarButtonInfo* current_tb_info_; - size_t current_tb_info_size_; - - PaintManager paint_manager_; - - struct BackgroundPart { - pp::Rect location; - uint32 color; - }; - std::vector<BackgroundPart> background_parts_; - - struct PrintSettings { - PrintSettings() { - Clear(); - } - void Clear() { - is_printing = false; - print_pages_called_ = false; - memset(&pepper_print_settings, 0, sizeof(pepper_print_settings)); - } - // This is set to true when PrintBegin is called and false when PrintEnd is - // called. - bool is_printing; - // To know whether this was an actual print operation, so we don't double - // count UMA logging. - bool print_pages_called_; - PP_PrintSettings_Dev pepper_print_settings; - }; - - PrintSettings print_settings_; - - scoped_ptr<PDFEngine> engine_; - - // This engine is used to render the individual preview page data. This is - // used only in print preview mode. This will use |PreviewModeClient| - // interface which has very limited access to the pp::Instance. - scoped_ptr<PDFEngine> preview_engine_; - - std::string url_; - - scoped_ptr<FadingControls> toolbar_; - ThumbnailControl thumbnails_; - ProgressControl progress_bar_; - uint32 delayed_progress_timer_id_; - PageIndicator page_indicator_; - - // Used for creating images from numbers. - scoped_ptr<NumberImageGenerator> number_image_generator_; - - // Used for submitting forms. - pp::CompletionCallbackFactory<Instance> form_factory_; - pp::URLLoader form_loader_; - - // Used for generating callbacks. - // TODO(raymes): We don't really need other callback factories we can just - // fold them into this one. - pp::CompletionCallbackFactory<Instance> callback_factory_; - - // True if we haven't painted the plugin viewport yet. - bool first_paint_; - - // True when we've painted at least one page from the document. - bool painted_first_page_; - - // True if we should display page indicator, false otherwise - bool show_page_indicator_; - - // Callback when the document load completes. - pp::Var on_load_callback_; - pp::Var on_scroll_callback_; - pp::Var on_plugin_size_changed_callback_; - - DocumentLoadState document_load_state_; - DocumentLoadState preview_document_load_state_; - - // JavaScript interface to control this instance. - // This wraps a PDFScriptableObject in a pp::Var. - pp::VarPrivate instance_object_; - - // Used so that we only tell the browser once about an unsupported feature, to - // avoid the infobar going up more than once. - bool told_browser_about_unsupported_feature_; - - // Keeps track of which unsupported features we reported, so we avoid spamming - // the stats if a feature shows up many times per document. - std::set<std::string> unsupported_features_reported_; - - // Number of pages in print preview mode, 0 if not in print preview mode. - int print_preview_page_count_; - std::vector<int> print_preview_page_numbers_; - - // Used to manage loaded print preview page information. A |PreviewPageInfo| - // consists of data source url string and the page index in the destination - // document. - typedef std::pair<std::string, int> PreviewPageInfo; - std::queue<PreviewPageInfo> preview_pages_info_; - - // Used to signal the browser about focus changes to trigger the OSK. - // TODO(abodenha@chromium.org) Implement full IME support in the plugin. - // http://crbug.com/132565 - scoped_ptr<pp::TextInput_Dev> text_input_; -}; - -// This implements the JavaScript class entrypoint for the plugin instance. -// This class is just a thin wrapper. It delegates relevant methods to Instance. -class PDFScriptableObject : public pp::deprecated::ScriptableObject { - public: - explicit PDFScriptableObject(Instance* instance); - virtual ~PDFScriptableObject(); - - // pp::deprecated::ScriptableObject implementation. - virtual bool HasMethod(const pp::Var& method, pp::Var* exception); - virtual pp::Var Call(const pp::Var& method, - const std::vector<pp::Var>& args, - pp::Var* exception); - - private: - Instance* instance_; -}; - -} // namespace chrome_pdf - -#endif // PDF_INSTANCE_H_ |