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.
5 #import "chrome/browser/renderer_host/chrome_render_widget_host_view_mac_delegate.h"
9 #include "base/prefs/pref_service.h"
10 #include "base/strings/sys_string_conversions.h"
11 #include "chrome/browser/devtools/devtools_window.h"
12 #include "chrome/browser/profiles/profile.h"
13 #import "chrome/browser/renderer_host/chrome_render_widget_host_view_mac_history_swiper.h"
14 #include "chrome/browser/spellchecker/spellcheck_platform_mac.h"
15 #include "chrome/browser/ui/browser.h"
16 #include "chrome/browser/ui/browser_commands.h"
17 #include "chrome/browser/ui/browser_finder.h"
18 #import "chrome/browser/ui/cocoa/browser_window_controller.h"
19 #include "chrome/common/pref_names.h"
20 #include "chrome/common/spellcheck_messages.h"
21 #include "chrome/common/url_constants.h"
22 #include "content/public/browser/render_process_host.h"
23 #include "content/public/browser/render_view_host.h"
24 #include "content/public/browser/render_widget_host.h"
25 #include "content/public/browser/render_widget_host_view.h"
26 #include "content/public/browser/web_contents.h"
27 #include "content/public/browser/web_contents_observer.h"
29 using content::RenderViewHost;
31 @interface ChromeRenderWidgetHostViewMacDelegate () <HistorySwiperDelegate>
32 - (void)spellCheckEnabled:(BOOL)enabled checked:(BOOL)checked;
35 namespace ChromeRenderWidgetHostViewMacDelegateInternal {
37 // Filters the message sent by the renderer to know if spellchecking is enabled
38 // or not for the currently focused element.
39 class SpellCheckObserver : public content::WebContentsObserver {
43 ChromeRenderWidgetHostViewMacDelegate* view_delegate)
44 : content::WebContentsObserver(
45 content::WebContents::FromRenderViewHost(host)),
46 view_delegate_(view_delegate) {
49 ~SpellCheckObserver() override {}
52 bool OnMessageReceived(const IPC::Message& message) override {
54 IPC_BEGIN_MESSAGE_MAP(SpellCheckObserver, message)
55 IPC_MESSAGE_HANDLER(SpellCheckHostMsg_ToggleSpellCheck,
57 IPC_MESSAGE_UNHANDLED(handled = false)
62 void OnToggleSpellCheck(bool enabled, bool checked) {
63 [view_delegate_ spellCheckEnabled:enabled checked:checked];
66 ChromeRenderWidgetHostViewMacDelegate* view_delegate_;
69 } // namespace ChromeRenderWidgetHostViewMacDelegateInternal
71 @implementation ChromeRenderWidgetHostViewMacDelegate
73 - (id)initWithRenderWidgetHost:(content::RenderWidgetHost*)renderWidgetHost {
76 renderWidgetHost_ = renderWidgetHost;
77 if (renderWidgetHost_->IsRenderView()) {
78 spellingObserver_.reset(
79 new ChromeRenderWidgetHostViewMacDelegateInternal::SpellCheckObserver(
80 RenderViewHost::From(renderWidgetHost_), self));
83 historySwiper_.reset([[HistorySwiper alloc] initWithDelegate:self]);
89 [historySwiper_ setDelegate:nil];
93 // Handle an event. All incoming key and mouse events flow through this
94 // delegate method if implemented. Return YES if the event is fully handled, or
95 // NO if normal processing should take place.
96 - (BOOL)handleEvent:(NSEvent*)event {
97 return [historySwiper_ handleEvent:event];
102 - (void)beginGestureWithEvent:(NSEvent*)event {
103 [historySwiper_ beginGestureWithEvent:event];
106 - (void)endGestureWithEvent:(NSEvent*)event {
107 [historySwiper_ endGestureWithEvent:event];
110 // This is a low level API which provides touches associated with an event.
111 // It is used in conjunction with gestures to determine finger placement
113 - (void)touchesMovedWithEvent:(NSEvent*)event {
114 [historySwiper_ touchesMovedWithEvent:event];
117 - (void)touchesBeganWithEvent:(NSEvent*)event {
118 [historySwiper_ touchesBeganWithEvent:event];
121 - (void)touchesCancelledWithEvent:(NSEvent*)event {
122 [historySwiper_ touchesCancelledWithEvent:event];
125 - (void)touchesEndedWithEvent:(NSEvent*)event {
126 [historySwiper_ touchesEndedWithEvent:event];
129 - (BOOL)canRubberbandLeft:(NSView*)view {
130 return [historySwiper_ canRubberbandLeft:view];
133 - (BOOL)canRubberbandRight:(NSView*)view {
134 return [historySwiper_ canRubberbandRight:view];
137 // HistorySwiperDelegate methods
139 - (BOOL)shouldAllowHistorySwiping {
140 if (!renderWidgetHost_ || !renderWidgetHost_->IsRenderView())
142 content::WebContents* webContents = content::WebContents::FromRenderViewHost(
143 RenderViewHost::From(renderWidgetHost_));
144 if (webContents && DevToolsWindow::IsDevToolsWindow(webContents)) {
151 - (NSView*)viewThatWantsHistoryOverlay {
152 return renderWidgetHost_->GetView()->GetNativeView();
155 - (BOOL)validateUserInterfaceItem:(id<NSValidatedUserInterfaceItem>)item
156 isValidItem:(BOOL*)valid {
157 SEL action = [item action];
159 // For now, this action is always enabled for render view;
160 // this is sub-optimal.
161 // TODO(suzhe): Plumb the "can*" methods up from WebCore.
162 if (action == @selector(checkSpelling:)) {
163 *valid = renderWidgetHost_->IsRenderView();
167 // TODO(groby): Clarify who sends this and if toggleContinuousSpellChecking:
168 // is still necessary.
169 if (action == @selector(toggleContinuousSpellChecking:)) {
170 if ([(id)item respondsToSelector:@selector(setState:)]) {
171 content::RenderProcessHost* host = renderWidgetHost_->GetProcess();
172 Profile* profile = Profile::FromBrowserContext(host->GetBrowserContext());
175 profile->GetPrefs()->GetBoolean(prefs::kEnableContinuousSpellcheck);
176 NSCellStateValue checkedState =
177 spellcheckChecked_ ? NSOnState : NSOffState;
178 [(id)item setState:checkedState];
180 *valid = spellcheckEnabled_;
187 - (void)rendererHandledWheelEvent:(const blink::WebMouseWheelEvent&)event
188 consumed:(BOOL)consumed {
189 [historySwiper_ rendererHandledWheelEvent:event consumed:consumed];
192 // Spellchecking methods
193 // The next five methods are implemented here since this class is the first
194 // responder for anything in the browser.
196 // This message is sent whenever the user specifies that a word should be
197 // changed from the spellChecker.
198 - (void)changeSpelling:(id)sender {
199 // Grab the currently selected word from the spell panel, as this is the word
200 // that we want to replace the selected word in the text with.
201 NSString* newWord = [[sender selectedCell] stringValue];
202 if (newWord != nil) {
203 content::WebContents* webContents =
204 content::WebContents::FromRenderViewHost(
205 RenderViewHost::From(renderWidgetHost_));
206 webContents->Replace(base::SysNSStringToUTF16(newWord));
210 // This message is sent by NSSpellChecker whenever the next word should be
211 // advanced to, either after a correction or clicking the "Find Next" button.
212 // This isn't documented anywhere useful, like in NSSpellProtocol.h with the
213 // other spelling panel methods. This is probably because Apple assumes that the
214 // the spelling panel will be used with an NSText, which will automatically
215 // catch this and advance to the next word for you. Thanks Apple.
216 // This is also called from the Edit -> Spelling -> Check Spelling menu item.
217 - (void)checkSpelling:(id)sender {
218 renderWidgetHost_->Send(new SpellCheckMsg_AdvanceToNextMisspelling(
219 renderWidgetHost_->GetRoutingID()));
222 // This message is sent by the spelling panel whenever a word is ignored.
223 - (void)ignoreSpelling:(id)sender {
224 // Ideally, we would ask the current RenderView for its tag, but that would
225 // mean making a blocking IPC call from the browser. Instead,
226 // spellcheck_mac::CheckSpelling remembers the last tag and
227 // spellcheck_mac::IgnoreWord assumes that is the correct tag.
228 NSString* wordToIgnore = [sender stringValue];
229 if (wordToIgnore != nil)
230 spellcheck_mac::IgnoreWord(base::SysNSStringToUTF16(wordToIgnore));
233 - (void)showGuessPanel:(id)sender {
234 renderWidgetHost_->Send(new SpellCheckMsg_ToggleSpellPanel(
235 renderWidgetHost_->GetRoutingID(),
236 spellcheck_mac::SpellingPanelVisible()));
239 - (void)toggleContinuousSpellChecking:(id)sender {
240 content::RenderProcessHost* host = renderWidgetHost_->GetProcess();
241 Profile* profile = Profile::FromBrowserContext(host->GetBrowserContext());
243 PrefService* pref = profile->GetPrefs();
244 pref->SetBoolean(prefs::kEnableContinuousSpellcheck,
245 !pref->GetBoolean(prefs::kEnableContinuousSpellcheck));
248 - (void)spellCheckEnabled:(BOOL)enabled checked:(BOOL)checked {
249 spellcheckEnabled_ = enabled;
250 spellcheckChecked_ = checked;
253 // END Spellchecking methods