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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/command_line.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 "chrome/common/pref_names.h"
#include "content/public/browser/web_contents.h"
#include "content/public/browser/web_contents_view.h"
#include "content/public/common/content_switches.h"
#include "ui/base/cocoa/base_view.h"
#include "ui/base/cocoa/focus_tracker.h"
#include "ui/gfx/mac/scoped_ns_disable_screen_updates.h"
#include "ui/gfx/size_conversions.h"
namespace {
bool CoreAnimationIsEnabled() {
static bool is_enabled = !CommandLine::ForCurrentProcess()->HasSwitch(
switches::kDisableCoreAnimation);
return is_enabled;
}
}
using content::WebContents;
@interface DevToolsContainerView : BaseView {
DevToolsContentsResizingStrategy strategy_;
// Weak references. Ownership via -subviews.
NSView* devToolsView_;
NSView* contentsView_;
}
- (void)setContentsResizingStrategy:
(const DevToolsContentsResizingStrategy&)strategy;
- (void)adjustSubviews;
- (void)showDevTools:(NSView*)devToolsView;
- (void)hideDevTools;
@end
@implementation DevToolsContainerView
- (void)setContentsResizingStrategy:
(const DevToolsContentsResizingStrategy&)strategy {
strategy_.CopyFrom(strategy);
}
- (void)resizeSubviewsWithOldSize:(NSSize)oldBoundsSize {
[self adjustSubviews];
}
- (void)showDevTools:(NSView*)devToolsView {
NSArray* subviews = [self subviews];
DCHECK_EQ(1u, [subviews count]);
contentsView_ = [subviews objectAtIndex:0];
devToolsView_ = devToolsView;
if (CoreAnimationIsEnabled()) {
// Make sure we do not draw any transient arrangements of views.
gfx::ScopedNSDisableScreenUpdates disabler;
[self replaceSubview:contentsView_ with:devToolsView_];
[devToolsView_ addSubview:contentsView_];
} else {
// Place DevTools under contents.
[self addSubview:devToolsView positioned:NSWindowBelow relativeTo:nil];
}
}
- (void)hideDevTools {
if (CoreAnimationIsEnabled()) {
// Make sure we do not draw any transient arrangements of views.
gfx::ScopedNSDisableScreenUpdates disabler;
DCHECK_EQ(1u, [[self subviews] count]);
[contentsView_ removeFromSuperview];
[self replaceSubview:devToolsView_ with:contentsView_];
} else {
DCHECK_EQ(2u, [[self subviews] count]);
[devToolsView_ removeFromSuperview];
}
contentsView_ = nil;
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;
}
if (CoreAnimationIsEnabled()) {
DCHECK_EQ(1u, [[self subviews] count]);
} else {
DCHECK_EQ(2u, [[self subviews] count]);
}
gfx::Rect new_devtools_bounds;
gfx::Rect new_contents_bounds;
ApplyDevToolsContentsResizingStrategy(
strategy_, gfx::Size(NSSizeToCGSize([self bounds].size)),
[self flipNSRectToRect:[devToolsView_ bounds]],
[self flipNSRectToRect:[contentsView_ bounds]],
&new_devtools_bounds, &new_contents_bounds);
[devToolsView_ setFrame:[self flipRectToNSRect:new_devtools_bounds]];
[contentsView_ setFrame:[self flipRectToNSRect:new_contents_bounds]];
}
@end
@interface DevToolsController (Private)
- (void)showDevToolsView;
- (void)hideDevToolsView;
@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();
}
- (void)updateDevToolsForWebContents:(WebContents*)contents
withProfile:(Profile*)profile {
DevToolsWindow* newDevToolsWindow = contents ?
DevToolsWindow::GetDockedInstanceForInspectedTab(contents) : NULL;
// Make sure we do not draw any transient arrangements of views.
gfx::ScopedNSDisableScreenUpdates disabler;
bool shouldHide = devToolsWindow_ && devToolsWindow_ != newDevToolsWindow;
bool shouldShow = newDevToolsWindow && devToolsWindow_ != newDevToolsWindow;
if (shouldHide)
[self hideDevToolsView];
devToolsWindow_ = newDevToolsWindow;
if (devToolsWindow_) {
const DevToolsContentsResizingStrategy& strategy =
devToolsWindow_->GetContentsResizingStrategy();
devToolsWindow_->web_contents()->GetView()->SetOverlayView(
contents->GetView(),
gfx::Point(strategy.insets().left(), strategy.insets().top()));
[devToolsContainerView_ setContentsResizingStrategy:strategy];
} else {
DevToolsContentsResizingStrategy zeroStrategy;
[devToolsContainerView_ setContentsResizingStrategy:zeroStrategy];
}
if (shouldShow)
[self showDevToolsView];
[devToolsContainerView_ adjustSubviews];
}
- (void)showDevToolsView {
focusTracker_.reset(
[[FocusTracker alloc] initWithWindow:[devToolsContainerView_ window]]);
// |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.
NSView* devToolsView =
devToolsWindow_->web_contents()->GetView()->GetNativeView();
view_id_util::SetID(devToolsView, VIEW_ID_DEV_TOOLS_DOCKED);
[devToolsContainerView_ showDevTools:devToolsView];
}
- (void)hideDevToolsView {
devToolsWindow_->web_contents()->GetView()->RemoveOverlayView();
[devToolsContainerView_ hideDevTools];
[focusTracker_ restoreFocusInWindow:[devToolsContainerView_ window]];
focusTracker_.reset();
}
@end
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