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 "content/renderer/text_input_client_observer.h"
6
7 #include "base/memory/scoped_ptr.h"
8 #include "content/common/text_input_client_messages.h"
9 #include "content/renderer/pepper/pepper_plugin_instance_impl.h"
10 #include "content/renderer/render_view_impl.h"
11 #include "third_party/WebKit/public/platform/WebPoint.h"
12 #include "third_party/WebKit/public/platform/WebRect.h"
13 #include "third_party/WebKit/public/platform/WebString.h"
14 #include "third_party/WebKit/public/web/mac/WebSubstringUtil.h"
15 #include "third_party/WebKit/public/web/WebFrame.h"
16 #include "third_party/WebKit/public/web/WebView.h"
17 #include "ui/gfx/rect.h"
18
19 namespace content {
20
TextInputClientObserver(RenderViewImpl * render_view)21 TextInputClientObserver::TextInputClientObserver(RenderViewImpl* render_view)
22 : RenderViewObserver(render_view),
23 render_view_impl_(render_view) {
24 }
25
~TextInputClientObserver()26 TextInputClientObserver::~TextInputClientObserver() {
27 }
28
OnMessageReceived(const IPC::Message & message)29 bool TextInputClientObserver::OnMessageReceived(const IPC::Message& message) {
30 bool handled = true;
31 IPC_BEGIN_MESSAGE_MAP(TextInputClientObserver, message)
32 IPC_MESSAGE_HANDLER(TextInputClientMsg_CharacterIndexForPoint,
33 OnCharacterIndexForPoint)
34 IPC_MESSAGE_HANDLER(TextInputClientMsg_FirstRectForCharacterRange,
35 OnFirstRectForCharacterRange)
36 IPC_MESSAGE_HANDLER(TextInputClientMsg_StringForRange, OnStringForRange)
37 IPC_MESSAGE_UNHANDLED(handled = false)
38 IPC_END_MESSAGE_MAP()
39 return handled;
40 }
41
webview()42 blink::WebView* TextInputClientObserver::webview() {
43 return render_view()->GetWebView();
44 }
45
OnCharacterIndexForPoint(gfx::Point point)46 void TextInputClientObserver::OnCharacterIndexForPoint(gfx::Point point) {
47 blink::WebPoint web_point(point);
48 size_t index = webview()->focusedFrame()->characterIndexForPoint(web_point);
49 Send(new TextInputClientReplyMsg_GotCharacterIndexForPoint(routing_id(),
50 index));
51 }
52
OnFirstRectForCharacterRange(gfx::Range range)53 void TextInputClientObserver::OnFirstRectForCharacterRange(gfx::Range range) {
54 gfx::Rect rect;
55 #if defined(ENABLE_PLUGINS)
56 if (render_view_impl_->focused_pepper_plugin()) {
57 rect = render_view_impl_->focused_pepper_plugin()->GetCaretBounds();
58 } else
59 #endif
60 {
61 blink::WebFrame* frame = webview()->focusedFrame();
62 if (frame) {
63 blink::WebRect web_rect;
64 frame->firstRectForCharacterRange(range.start(), range.length(),
65 web_rect);
66 rect = web_rect;
67 }
68 }
69 Send(new TextInputClientReplyMsg_GotFirstRectForRange(routing_id(), rect));
70 }
71
OnStringForRange(gfx::Range range)72 void TextInputClientObserver::OnStringForRange(gfx::Range range) {
73 #if defined(OS_MACOSX)
74 NSAttributedString* string = nil;
75 blink::WebFrame* frame = webview()->focusedFrame();
76 if (frame) {
77 string = blink::WebSubstringUtil::attributedSubstringInRange(
78 frame, range.start(), range.length());
79 }
80 scoped_ptr<const mac::AttributedStringCoder::EncodedString> encoded(
81 mac::AttributedStringCoder::Encode(string));
82 Send(new TextInputClientReplyMsg_GotStringForRange(routing_id(),
83 *encoded.get()));
84 #else
85 NOTIMPLEMENTED();
86 #endif
87 }
88
89 } // namespace content
90