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// Copyright (c) 2012 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/ui/cocoa/dev_tools_controller.h"
#include <algorithm>
#include <cmath>
#include <Cocoa/Cocoa.h>
#include "base/prefs/pref_service.h"
#include "chrome/browser/browser_process.h"
#include "chrome/browser/profiles/profile.h"
#import "chrome/browser/ui/cocoa/view_id_util.h"
#include "content/public/browser/web_contents.h"
#include "ui/base/cocoa/base_view.h"
#include "ui/base/cocoa/focus_tracker.h"
#include "ui/gfx/geometry/size_conversions.h"
#include "ui/gfx/mac/scoped_ns_disable_screen_updates.h"
using content::WebContents;
@interface DevToolsContainerView : BaseView {
DevToolsContentsResizingStrategy strategy_;
// Weak references. Ownership via -subviews.
NSView* devToolsView_;
NSView* contentsView_;
}
// Returns true iff layout has changed.
- (BOOL)setDevToolsView:(NSView*)devToolsView
withStrategy:(const DevToolsContentsResizingStrategy&)strategy;
- (void)adjustSubviews;
- (BOOL)hasDevToolsView;
@end
@implementation DevToolsContainerView
- (BOOL)setDevToolsView:(NSView*)devToolsView
withStrategy:(const DevToolsContentsResizingStrategy&)strategy {
BOOL strategy_changed = !strategy_.Equals(strategy);
strategy_.CopyFrom(strategy);
if (devToolsView == devToolsView_) {
if (contentsView_)
[contentsView_ setHidden:strategy.hide_inspected_contents()];
return strategy_changed;
}
if (devToolsView_) {
DCHECK_EQ(2u, [[self subviews] count]);
[devToolsView_ removeFromSuperview];
[contentsView_ setHidden:NO];
contentsView_ = nil;
devToolsView_ = nil;
}
if (devToolsView) {
NSArray* subviews = [self subviews];
DCHECK_EQ(1u, [subviews count]);
contentsView_ = [subviews objectAtIndex:0];
devToolsView_ = devToolsView;
// Place DevTools under contents.
[self addSubview:devToolsView positioned:NSWindowBelow relativeTo:nil];
[contentsView_ setHidden:strategy.hide_inspected_contents()];
}
return YES;
}
- (void)resizeSubviewsWithOldSize:(NSSize)oldBoundsSize {
[self adjustSubviews];
}
- (BOOL)hasDevToolsView {
return devToolsView_ != nil;
}
- (void)adjustSubviews {
if (![[self subviews] count])
return;
if (!devToolsView_) {
DCHECK_EQ(1u, [[self subviews] count]);
NSView* contents = [[self subviews] objectAtIndex:0];
[contents setFrame:[self bounds]];
return;
}
DCHECK_EQ(2u, [[self subviews] count]);
gfx::Rect new_devtools_bounds;
gfx::Rect new_contents_bounds;
ApplyDevToolsContentsResizingStrategy(
strategy_, gfx::Size(NSSizeToCGSize([self bounds].size)),
&new_devtools_bounds, &new_contents_bounds);
[devToolsView_ setFrame:[self flipRectToNSRect:new_devtools_bounds]];
[contentsView_ setFrame:[self flipRectToNSRect:new_contents_bounds]];
}
@end
@implementation DevToolsController
- (id)init {
if ((self = [super init])) {
devToolsContainerView_.reset(
[[DevToolsContainerView alloc] initWithFrame:NSZeroRect]);
[devToolsContainerView_
setAutoresizingMask:NSViewWidthSizable|NSViewHeightSizable];
}
return self;
}
- (NSView*)view {
return devToolsContainerView_.get();
}
- (BOOL)updateDevToolsForWebContents:(WebContents*)contents
withProfile:(Profile*)profile {
DevToolsContentsResizingStrategy strategy;
WebContents* devTools = DevToolsWindow::GetInTabWebContents(
contents, &strategy);
// Make sure we do not draw any transient arrangements of views.
gfx::ScopedNSDisableScreenUpdates disabler;
if (devTools && ![devToolsContainerView_ hasDevToolsView]) {
focusTracker_.reset(
[[FocusTracker alloc] initWithWindow:[devToolsContainerView_ window]]);
}
if (!devTools && [devToolsContainerView_ hasDevToolsView]) {
[focusTracker_ restoreFocusInWindow:[devToolsContainerView_ window]];
focusTracker_.reset();
}
NSView* devToolsView = nil;
if (devTools) {
devToolsView = devTools->GetNativeView();
// |devToolsView| is a WebContentsViewCocoa object, whose ViewID was
// set to VIEW_ID_TAB_CONTAINER initially, so we need to change it to
// VIEW_ID_DEV_TOOLS_DOCKED here.
view_id_util::SetID(devToolsView, VIEW_ID_DEV_TOOLS_DOCKED);
devTools->SetAllowOtherViews(true);
contents->SetAllowOtherViews(true);
} else {
contents->SetAllowOtherViews(false);
}
BOOL result = [devToolsContainerView_ setDevToolsView:devToolsView
withStrategy:strategy];
[devToolsContainerView_ adjustSubviews];
return result;
}
@end
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