| // 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 CONTENT_RENDERER_TEXT_INPUT_CLIENT_OBSERVER_H_ |
| #define CONTENT_RENDERER_TEXT_INPUT_CLIENT_OBSERVER_H_ |
| |
| #include "base/macros.h" |
| #include "build/build_config.h" |
| #include "content/public/renderer/render_view_observer.h" |
| #include "ppapi/buildflags/buildflags.h" |
| #include "ui/gfx/geometry/point.h" |
| #include "ui/gfx/range/range.h" |
| |
| namespace blink { |
| class WebFrameWidget; |
| class WebLocalFrame; |
| } |
| |
| namespace content { |
| |
| class PepperPluginInstanceImpl; |
| class RenderWidget; |
| |
| // This is the renderer-side message filter that generates the replies for the |
| // messages sent by the TextInputClientMac. See |
| // content/browser/renderer_host/text_input_client_mac.h for more information. |
| class TextInputClientObserver : public IPC::Listener, public IPC::Sender { |
| public: |
| // Pass a null RenderWidget when the TextInputClientObserver is for a |
| // RenderWidget not associated with a RenderFrame. The TextInputClientObserver |
| // expects that the RenderWidget's WebWidget will always be a WebFrameWidget. |
| // When given a null, the TextInputClientObserver can still reply to IPC |
| // messages with empty results. |
| explicit TextInputClientObserver(RenderWidget* render_widget); |
| ~TextInputClientObserver() override; |
| |
| // IPC::Listener override. |
| bool OnMessageReceived(const IPC::Message& message) override; |
| |
| // IPC::Sender override. |
| bool Send(IPC::Message* message) override; |
| |
| private: |
| // The WebFrameWidget corresponding to this TextInputClientObserver. While the |
| // main frame is remote, the value returned from this method for a main frame |
| // RenderWidget is null. |
| // TODO(crbug.com/669219): The browser shouldn't be sending IPCs that land |
| // in this class when the main frame is remote. |
| // TODO(crbug.com/419087): The lifetime of the WebFrameWidget should |
| // eventually be tied to the lifetime of the RenderWidget so this would never |
| // return null. |
| blink::WebFrameWidget* GetWebFrameWidget() const; |
| |
| blink::WebLocalFrame* GetFocusedFrame() const; |
| |
| #if BUILDFLAG(ENABLE_PLUGINS) |
| // Returns the currently focused pepper plugin on the page. The expectation is |
| // that the focused pepper plugin is inside a frame whose local root is equal |
| // to GetWebFrameWidget()->localRoot(). |
| PepperPluginInstanceImpl* GetFocusedPepperPlugin() const; |
| #endif |
| |
| // IPC Message handlers: |
| void OnStringAtPoint(gfx::Point point); |
| void OnCharacterIndexForPoint(gfx::Point point); |
| void OnFirstRectForCharacterRange(gfx::Range range); |
| void OnStringForRange(gfx::Range range); |
| |
| // The RenderWidget owning this instance of the observer. |
| RenderWidget* render_widget_; |
| |
| DISALLOW_COPY_AND_ASSIGN(TextInputClientObserver); |
| }; |
| |
| } // namespace content |
| |
| #endif // CONTENT_RENDERER_TEXT_INPUT_CLIENT_OBSERVER_H_ |