| // 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 CHROME_BROWSER_PRINTING_PRINT_VIEW_MANAGER_H_ |
| #define CHROME_BROWSER_PRINTING_PRINT_VIEW_MANAGER_H_ |
| |
| #include "base/macros.h" |
| #include "chrome/browser/printing/print_view_manager_base.h" |
| #include "content/public/browser/web_contents_user_data.h" |
| #include "printing/buildflags/buildflags.h" |
| |
| namespace content { |
| class RenderFrameHost; |
| class RenderProcessHost; |
| } |
| |
| namespace printing { |
| |
| // Manages the print commands for a WebContents. |
| class PrintViewManager : public PrintViewManagerBase, |
| public content::WebContentsUserData<PrintViewManager> { |
| public: |
| ~PrintViewManager() override; |
| |
| // Same as PrintNow(), but for the case where a user prints with the system |
| // dialog from print preview. |
| // |dialog_shown_callback| is called when the print dialog is shown. |
| bool PrintForSystemDialogNow(base::OnceClosure dialog_shown_callback); |
| |
| // Same as PrintNow(), but for the case where a user press "ctrl+shift+p" to |
| // show the native system dialog. This can happen from both initiator and |
| // preview dialog. |
| bool BasicPrint(content::RenderFrameHost* rfh); |
| |
| // Initiate print preview of the current document by first notifying the |
| // renderer. Since this happens asynchronous, the print preview dialog |
| // creation will not be completed on the return of this function. Returns |
| // false if print preview is impossible at the moment. |
| bool PrintPreviewNow(content::RenderFrameHost* rfh, bool has_selection); |
| |
| // Notify PrintViewManager that print preview is starting in the renderer for |
| // a particular WebNode. |
| void PrintPreviewForWebNode(content::RenderFrameHost* rfh); |
| |
| // Notify PrintViewManager that print preview is about to finish. Unblock the |
| // renderer in the case of scripted print preview if needed. |
| void PrintPreviewAlmostDone(); |
| |
| // Notify PrintViewManager that print preview has finished. Unblock the |
| // renderer in the case of scripted print preview if needed. |
| void PrintPreviewDone(); |
| |
| // content::WebContentsObserver implementation. |
| void RenderFrameCreated(content::RenderFrameHost* render_frame_host) override; |
| void RenderFrameDeleted(content::RenderFrameHost* render_frame_host) override; |
| bool OnMessageReceived(const IPC::Message& message, |
| content::RenderFrameHost* render_frame_host) override; |
| |
| content::RenderFrameHost* print_preview_rfh() { return print_preview_rfh_; } |
| |
| protected: |
| explicit PrintViewManager(content::WebContents* web_contents); |
| |
| private: |
| friend class content::WebContentsUserData<PrintViewManager>; |
| |
| enum PrintPreviewState { |
| NOT_PREVIEWING, |
| USER_INITIATED_PREVIEW, |
| SCRIPTED_PREVIEW, |
| }; |
| |
| struct FrameDispatchHelper; |
| |
| // IPC Message handlers. |
| void OnDidShowPrintDialog(content::RenderFrameHost* rfh); |
| void OnSetupScriptedPrintPreview(content::RenderFrameHost* rfh, |
| IPC::Message* reply_msg); |
| void OnShowScriptedPrintPreview(content::RenderFrameHost* rfh, |
| bool source_is_modifiable); |
| void OnScriptedPrintPreviewReply(IPC::Message* reply_msg); |
| |
| void MaybeUnblockScriptedPreviewRPH(); |
| |
| base::OnceClosure on_print_dialog_shown_callback_; |
| |
| // Current state of print preview for this view. |
| PrintPreviewState print_preview_state_ = NOT_PREVIEWING; |
| |
| // The current RFH that is print previewing. It should be a nullptr when |
| // |print_preview_state_| is NOT_PREVIEWING. |
| content::RenderFrameHost* print_preview_rfh_ = nullptr; |
| |
| // Keeps track of the pending callback during scripted print preview. |
| content::RenderProcessHost* scripted_print_preview_rph_ = nullptr; |
| |
| // True if |scripted_print_preview_rph_| needs to be unblocked. |
| bool scripted_print_preview_rph_set_blocked_ = false; |
| |
| // Indicates whether we're switching from print preview to system dialog. This |
| // flag is true between PrintForSystemDialogNow() and PrintPreviewDone(). |
| bool is_switching_to_system_dialog_ = false; |
| |
| WEB_CONTENTS_USER_DATA_KEY_DECL(); |
| |
| DISALLOW_COPY_AND_ASSIGN(PrintViewManager); |
| }; |
| |
| } // namespace printing |
| |
| #endif // CHROME_BROWSER_PRINTING_PRINT_VIEW_MANAGER_H_ |