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// Copyright (c) 2010 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.
#import "chrome/browser/cocoa/tab_contents_controller.h"
#include "base/mac_util.h"
#include "chrome/browser/renderer_host/render_view_host.h"
#include "chrome/browser/renderer_host/render_widget_host_view.h"
#include "chrome/browser/tab_contents/tab_contents.h"
@implementation TabContentsController
@synthesize tabContents = contents_;
- (id)initWithNibName:(NSString*)name
contents:(TabContents*)contents {
if ((self = [super initWithNibName:name
bundle:mac_util::MainAppBundle()])) {
contents_ = contents;
}
return self;
}
- (void)dealloc {
// make sure our contents have been removed from the window
[[self view] removeFromSuperview];
[super dealloc];
}
- (void)ensureContentsSizeDoesNotChange {
NSView* contentsContainer = [self view];
NSArray* subviews = [contentsContainer subviews];
if ([subviews count] > 0)
[contents_->GetNativeView() setAutoresizingMask:NSViewNotSizable];
}
// Call when the tab view is properly sized and the render widget host view
// should be put into the view hierarchy.
- (void)ensureContentsVisible {
NSView* contentsContainer = [self view];
NSArray* subviews = [contentsContainer subviews];
NSView* contentsNativeView = contents_->GetNativeView();
[contentsNativeView setFrame:[contentsContainer frame]];
if ([subviews count] == 0) {
[contentsContainer addSubview:contentsNativeView];
} else if ([subviews objectAtIndex:0] != contentsNativeView) {
[contentsContainer replaceSubview:[subviews objectAtIndex:0]
with:contentsNativeView];
}
[contentsNativeView setAutoresizingMask:NSViewWidthSizable|
NSViewHeightSizable];
}
// Returns YES if the tab represented by this controller is the front-most.
- (BOOL)isCurrentTab {
// We're the current tab if we're in the view hierarchy, otherwise some other
// tab is.
return [[self view] superview] ? YES : NO;
}
- (void)willBecomeUnselectedTab {
// The RWHV is ripped out of the view hierarchy on tab switches, so it never
// formally resigns first responder status. Handle this by explicitly sending
// a Blur() message to the renderer, but only if the RWHV currently has focus.
RenderViewHost* rvh = contents_->render_view_host();
if (rvh && rvh->view() && rvh->view()->HasFocus())
rvh->Blur();
}
- (void)willBecomeSelectedTab {
// Do not explicitly call Focus() here, as the RWHV may not actually have
// focus (for example, if the omnibox has focus instead). The TabContents
// logic will restore focus to the appropriate view.
}
- (void)tabDidChange:(TabContents*)updatedContents {
// Calling setContentView: here removes any first responder status
// the view may have, so avoid changing the view hierarchy unless
// the view is different.
if (contents_ != updatedContents) {
contents_ = updatedContents;
[self ensureContentsVisible];
}
}
@end
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