Add context menus to tabs.

BUG=14920
TEST=context menus on tabs.
Review URL: http://codereview.chromium.org/155173

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@20155 0039d316-1c4b-4281-b951-d872f2087c98

chrome/browser/cocoa/tab_controller.h

@@ -34,8 +34,9 @@ enum TabLoadingState {
 
 @interface TabController : NSViewController {
  @private
-  IBOutlet NSButton *backgroundButton_;
+  IBOutlet NSButton* backgroundButton_;
   IBOutlet NSView* iconView_;
+  IBOutlet NSMenu* contextMenu_;
   BOOL selected_;
   TabLoadingState loadingState_;
   id<TabControllerTarget> target_;  // weak, where actions are sent
@@ -59,6 +60,9 @@ enum TabLoadingState {
 // perform the close.
 - (IBAction)closeTab:(id)sender;
 
+// Dispatches the command in the tag to the registered target object.
+- (IBAction)commandDispatch:(id)sender;
+
 // Replace the current icon view with the given view. |iconView| will be
 // resized to the size of the current icon view.
 - (void)setIconView:(NSView*)iconView;

chrome/browser/cocoa/tab_controller.mm

@@ -55,6 +55,22 @@
   }
 }
 
+// Dispatches the command in the tag to the registered target object.
+- (IBAction)commandDispatch:(id)sender {
+  TabStripModel::ContextMenuCommand command =
+      static_cast<TabStripModel::ContextMenuCommand>([sender tag]);
+  [[self target] commandDispatch:command forController:self];
+}
+
+// Called for each menu item on its target, which would be this controller.
+// Returns YES if the menu item should be enabled. We ask the tab's
+// target for the proper answer.
+- (BOOL)validateMenuItem:(NSMenuItem*)item {
+  TabStripModel::ContextMenuCommand command =
+      static_cast<TabStripModel::ContextMenuCommand>([item tag]);
+  return [[self target] isCommandEnabled:command forController:self];
+}
+
 - (void)setTitle:(NSString *)title {
   [backgroundButton_ setToolTip:title];
   [super setTitle:title];

chrome/browser/cocoa/tab_controller_target.h

@@ -5,10 +5,22 @@
 #ifndef CHROME_BROWSER_COCOA_TAB_CONTROLLER_TARGET_H_
 #define CHROME_BROWSER_COCOA_TAB_CONTROLLER_TARGET_H_
 
+#include "chrome/browser/tabs/tab_strip_model.h"
+
+@class TabController;
+
 // A protocol to be implemented by a TabController's target.
 @protocol TabControllerTarget
 - (void)selectTab:(id)sender;
 - (void)closeTab:(id)sender;
+
+// Dispatch context menu commands for the given tab controller.
+- (void)commandDispatch:(TabStripModel::ContextMenuCommand)command
+          forController:(TabController*)controller;
+// Returns YES if the specificed command should be enabled for the given
+// controller.
+- (BOOL)isCommandEnabled:(TabStripModel::ContextMenuCommand)command
+           forController:(TabController*)controller;
 @end
 
 #endif  // CHROME_BROWSER_COCOA_TAB_CONTROLLER_TARGET_H_

chrome/browser/cocoa/tab_strip_controller.mm

@@ -166,6 +166,21 @@ NSString* const kTabStripNumberOfTabsChanged = @"kTabStripNumberOfTabsChanged";
   }
 }
 
+// Dispatch context menu commands for the given tab controller.
+- (void)commandDispatch:(TabStripModel::ContextMenuCommand)command
+          forController:(TabController*)controller {
+  int index = [self indexForTabView:[controller view]];
+  tabModel_->ExecuteContextMenuCommand(index, command);
+}
+
+// Returns YES if the specificed command should be enabled for the given
+// controller.
+- (BOOL)isCommandEnabled:(TabStripModel::ContextMenuCommand)command
+           forController:(TabController*)controller {
+  int index = [self indexForTabView:[controller view]];
+  return tabModel_->IsContextMenuCommandEnabled(index, command) ? YES : NO;
+}
+
 - (void)insertPlaceholderForTab:(TabView*)tab
                           frame:(NSRect)frame
                   yStretchiness:(CGFloat)yStretchiness {

chrome/browser/cocoa/tab_view.mm

@@ -254,7 +254,7 @@ static const double kDragStartDistance = 3.0;
   NSPoint origin = sourceWindowFrame_.origin;
   origin.x += (thisPoint.x - dragOrigin_.x);
   origin.y += (thisPoint.y - dragOrigin_.y);
-  
+
   if (tearProgress < 1) {
     // If the tear animation is not complete, call back to ourself with the
     // same event to animate even if the mouse isn't moving.
@@ -262,7 +262,7 @@ static const double kDragStartDistance = 3.0;
     [self performSelector:@selector(mouseDragged:)
                withObject:theEvent
                afterDelay:1.0f/30.0f];
-  
+
     origin.x = (1 - tearProgress) *  tearOrigin_.x + tearProgress * origin.x;
     origin.y = (1 - tearProgress) * tearOrigin_.y + tearProgress * origin.y;
   }
@@ -355,11 +355,17 @@ static const double kDragStartDistance = 3.0;
   [sourceController_ removePlaceholder];
 }
 
-- (void)otherMouseUp:(NSEvent*) theEvent {
+- (void)otherMouseUp:(NSEvent*)theEvent {
   // Support middle-click-to-close.
   if ([theEvent buttonNumber] == 2) {
     [controller_ closeTab:self];
   }
 }
 
+// Called when the user hits the right mouse button (or control-clicks) to
+// show a context menu.
+- (void)rightMouseDown:(NSEvent*)theEvent {
+  [NSMenu popUpContextMenu:[self menu] withEvent:theEvent forView:self];
+}
+
 @end