Move Webstore URL concepts to //extensions and out
[chromium-blink-merge.git] / chrome / browser / renderer_host / chrome_render_widget_host_view_mac_delegate.mm
blob99bf80111a97032adcceac299bfa1427440b539c
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"
7 #include <cmath>
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 #import "chrome/browser/ui/cocoa/view_id_util.h"
20 #include "chrome/common/pref_names.h"
21 #include "chrome/common/spellcheck_messages.h"
22 #include "chrome/common/url_constants.h"
23 #include "content/public/browser/render_process_host.h"
24 #include "content/public/browser/render_view_host.h"
25 #include "content/public/browser/render_widget_host.h"
26 #include "content/public/browser/render_widget_host_view.h"
27 #include "content/public/browser/web_contents.h"
28 #include "content/public/browser/web_contents_observer.h"
30 using content::RenderViewHost;
32 @interface ChromeRenderWidgetHostViewMacDelegate () <HistorySwiperDelegate>
33 - (void)spellCheckEnabled:(BOOL)enabled checked:(BOOL)checked;
34 @end
36 namespace ChromeRenderWidgetHostViewMacDelegateInternal {
38 // Filters the message sent by the renderer to know if spellchecking is enabled
39 // or not for the currently focused element.
40 class SpellCheckObserver : public content::WebContentsObserver {
41  public:
42   SpellCheckObserver(
43       RenderViewHost* host,
44       ChromeRenderWidgetHostViewMacDelegate* view_delegate)
45       : content::WebContentsObserver(
46             content::WebContents::FromRenderViewHost(host)),
47         view_delegate_(view_delegate) {
48   }
50   virtual ~SpellCheckObserver() {
51   }
53  private:
54   virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE {
55     bool handled = true;
56     IPC_BEGIN_MESSAGE_MAP(SpellCheckObserver, message)
57       IPC_MESSAGE_HANDLER(SpellCheckHostMsg_ToggleSpellCheck,
58                           OnToggleSpellCheck)
59       IPC_MESSAGE_UNHANDLED(handled = false)
60     IPC_END_MESSAGE_MAP()
61     return handled;
62   }
64   void OnToggleSpellCheck(bool enabled, bool checked) {
65     [view_delegate_ spellCheckEnabled:enabled checked:checked];
66   }
68   ChromeRenderWidgetHostViewMacDelegate* view_delegate_;
71 }  // namespace ChromeRenderWidgetHostViewMacDelegateInternal
73 @implementation ChromeRenderWidgetHostViewMacDelegate
75 - (id)initWithRenderWidgetHost:(content::RenderWidgetHost*)renderWidgetHost {
76   self = [super init];
77   if (self) {
78     renderWidgetHost_ = renderWidgetHost;
79     NSView* nativeView = renderWidgetHost_->GetView()->GetNativeView();
80     view_id_util::SetID(nativeView, VIEW_ID_TAB_CONTAINER);
82     if (renderWidgetHost_->IsRenderView()) {
83       spellingObserver_.reset(
84           new ChromeRenderWidgetHostViewMacDelegateInternal::SpellCheckObserver(
85               RenderViewHost::From(renderWidgetHost_), self));
86     }
88     historySwiper_.reset([[HistorySwiper alloc] initWithDelegate:self]);
89   }
90   return self;
93 - (void)dealloc {
94   [historySwiper_ setDelegate:nil];
95   [super dealloc];
98 - (void)viewGone:(NSView*)view {
99   view_id_util::UnsetID(view);
102 // Handle an event. All incoming key and mouse events flow through this
103 // delegate method if implemented. Return YES if the event is fully handled, or
104 // NO if normal processing should take place.
105 - (BOOL)handleEvent:(NSEvent*)event {
106   return [historySwiper_ handleEvent:event];
109 // NSWindow events.
111 - (void)beginGestureWithEvent:(NSEvent*)event {
112   [historySwiper_ beginGestureWithEvent:event];
115 - (void)endGestureWithEvent:(NSEvent*)event {
116   [historySwiper_ endGestureWithEvent:event];
119 // This is a low level API which provides touches associated with an event.
120 // It is used in conjunction with gestures to determine finger placement
121 // on the trackpad.
122 - (void)touchesMovedWithEvent:(NSEvent*)event {
123   [historySwiper_ touchesMovedWithEvent:event];
126 - (void)touchesBeganWithEvent:(NSEvent*)event {
127   [historySwiper_ touchesBeganWithEvent:event];
130 - (void)touchesCancelledWithEvent:(NSEvent*)event {
131   [historySwiper_ touchesCancelledWithEvent:event];
134 - (void)touchesEndedWithEvent:(NSEvent*)event {
135   [historySwiper_ touchesEndedWithEvent:event];
138 - (BOOL)canRubberbandLeft:(NSView*)view {
139   return [historySwiper_ canRubberbandLeft:view];
142 - (BOOL)canRubberbandRight:(NSView*)view {
143   return [historySwiper_ canRubberbandRight:view];
146 // HistorySwiperDelegate methods
148 - (BOOL)shouldAllowHistorySwiping {
149   if (!renderWidgetHost_ || !renderWidgetHost_->IsRenderView())
150     return NO;
151   content::WebContents* webContents = content::WebContents::FromRenderViewHost(
152       RenderViewHost::From(renderWidgetHost_));
153   if (webContents && DevToolsWindow::IsDevToolsWindow(webContents)) {
154     return NO;
155   }
157   return YES;
160 - (NSView*)viewThatWantsHistoryOverlay {
161   return renderWidgetHost_->GetView()->GetNativeView();
164 - (BOOL)validateUserInterfaceItem:(id<NSValidatedUserInterfaceItem>)item
165                       isValidItem:(BOOL*)valid {
166   SEL action = [item action];
168   // For now, this action is always enabled for render view;
169   // this is sub-optimal.
170   // TODO(suzhe): Plumb the "can*" methods up from WebCore.
171   if (action == @selector(checkSpelling:)) {
172     *valid = renderWidgetHost_->IsRenderView();
173     return YES;
174   }
176   // TODO(groby): Clarify who sends this and if toggleContinuousSpellChecking:
177   // is still necessary.
178   if (action == @selector(toggleContinuousSpellChecking:)) {
179     if ([(id)item respondsToSelector:@selector(setState:)]) {
180       content::RenderProcessHost* host = renderWidgetHost_->GetProcess();
181       Profile* profile = Profile::FromBrowserContext(host->GetBrowserContext());
182       DCHECK(profile);
183       spellcheckChecked_ =
184           profile->GetPrefs()->GetBoolean(prefs::kEnableContinuousSpellcheck);
185       NSCellStateValue checkedState =
186           spellcheckChecked_ ? NSOnState : NSOffState;
187       [(id)item setState:checkedState];
188     }
189     *valid = spellcheckEnabled_;
190     return YES;
191   }
193   return NO;
196 - (void)rendererHandledWheelEvent:(const blink::WebMouseWheelEvent&)event
197                          consumed:(BOOL)consumed {
198   [historySwiper_ rendererHandledWheelEvent:event consumed:consumed];
201 // Spellchecking methods
202 // The next five methods are implemented here since this class is the first
203 // responder for anything in the browser.
205 // This message is sent whenever the user specifies that a word should be
206 // changed from the spellChecker.
207 - (void)changeSpelling:(id)sender {
208   // Grab the currently selected word from the spell panel, as this is the word
209   // that we want to replace the selected word in the text with.
210   NSString* newWord = [[sender selectedCell] stringValue];
211   if (newWord != nil) {
212     content::WebContents* webContents =
213         content::WebContents::FromRenderViewHost(
214             RenderViewHost::From(renderWidgetHost_));
215     webContents->Replace(base::SysNSStringToUTF16(newWord));
216   }
219 // This message is sent by NSSpellChecker whenever the next word should be
220 // advanced to, either after a correction or clicking the "Find Next" button.
221 // This isn't documented anywhere useful, like in NSSpellProtocol.h with the
222 // other spelling panel methods. This is probably because Apple assumes that the
223 // the spelling panel will be used with an NSText, which will automatically
224 // catch this and advance to the next word for you. Thanks Apple.
225 // This is also called from the Edit -> Spelling -> Check Spelling menu item.
226 - (void)checkSpelling:(id)sender {
227   renderWidgetHost_->Send(new SpellCheckMsg_AdvanceToNextMisspelling(
228       renderWidgetHost_->GetRoutingID()));
231 // This message is sent by the spelling panel whenever a word is ignored.
232 - (void)ignoreSpelling:(id)sender {
233   // Ideally, we would ask the current RenderView for its tag, but that would
234   // mean making a blocking IPC call from the browser. Instead,
235   // spellcheck_mac::CheckSpelling remembers the last tag and
236   // spellcheck_mac::IgnoreWord assumes that is the correct tag.
237   NSString* wordToIgnore = [sender stringValue];
238   if (wordToIgnore != nil)
239     spellcheck_mac::IgnoreWord(base::SysNSStringToUTF16(wordToIgnore));
242 - (void)showGuessPanel:(id)sender {
243   renderWidgetHost_->Send(new SpellCheckMsg_ToggleSpellPanel(
244       renderWidgetHost_->GetRoutingID(),
245       spellcheck_mac::SpellingPanelVisible()));
248 - (void)toggleContinuousSpellChecking:(id)sender {
249   content::RenderProcessHost* host = renderWidgetHost_->GetProcess();
250   Profile* profile = Profile::FromBrowserContext(host->GetBrowserContext());
251   DCHECK(profile);
252   PrefService* pref = profile->GetPrefs();
253   pref->SetBoolean(prefs::kEnableContinuousSpellcheck,
254                    !pref->GetBoolean(prefs::kEnableContinuousSpellcheck));
257 - (void)spellCheckEnabled:(BOOL)enabled checked:(BOOL)checked {
258   spellcheckEnabled_ = enabled;
259   spellcheckChecked_ = checked;
262 // END Spellchecking methods
264 @end