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// Copyright (c) 2011 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/browser_window_utils.h"
#include <Carbon/Carbon.h>
#include "base/logging.h"
#include "chrome/app/chrome_command_ids.h"
#include "chrome/browser/global_keyboard_shortcuts_mac.h"
#include "chrome/browser/ui/browser.h"
#import "chrome/browser/ui/cocoa/chrome_event_processing_window.h"
#import "chrome/browser/ui/cocoa/nsmenuitem_additions.h"
#import "chrome/browser/ui/cocoa/tabs/tab_strip_controller.h"
#include "content/public/browser/native_web_keyboard_event.h"
using content::NativeWebKeyboardEvent;
@interface MenuWalker : NSObject
+ (NSMenuItem*)itemForKeyEquivalent:(NSEvent*)key
menu:(NSMenu*)menu;
@end
@implementation MenuWalker
+ (NSMenuItem*)itemForKeyEquivalent:(NSEvent*)key
menu:(NSMenu*)menu {
NSMenuItem* result = nil;
for (NSMenuItem* item in [menu itemArray]) {
NSMenu* submenu = [item submenu];
if (submenu) {
if (submenu != [NSApp servicesMenu])
result = [self itemForKeyEquivalent:key
menu:submenu];
} else if ([item cr_firesForKeyEventIfEnabled:key]) {
result = item;
}
if (result)
break;
}
return result;
}
@end
@implementation BrowserWindowUtils
+ (BOOL)shouldHandleKeyboardEvent:(const NativeWebKeyboardEvent&)event {
if (event.skip_in_browser || event.type == NativeWebKeyboardEvent::Char)
return NO;
DCHECK(event.os_event != NULL);
return YES;
}
+ (int)getCommandId:(const NativeWebKeyboardEvent&)event {
if ([event.os_event type] != NSKeyDown)
return -1;
// Look in menu.
NSMenuItem* item = [MenuWalker itemForKeyEquivalent:event.os_event
menu:[NSApp mainMenu]];
if (item && [item action] == @selector(commandDispatch:) && [item tag] > 0)
return [item tag];
// "Close window" doesn't use the |commandDispatch:| mechanism. Menu items
// that do not correspond to IDC_ constants need no special treatment however,
// as they can't be blacklisted in
// |BrowserCommandController::IsReservedCommandOrKey()| anyhow.
if (item && [item action] == @selector(performClose:))
return IDC_CLOSE_WINDOW;
// "Exit" doesn't use the |commandDispatch:| mechanism either.
if (item && [item action] == @selector(terminate:))
return IDC_EXIT;
// Look in secondary keyboard shortcuts.
NSUInteger modifiers = [event.os_event modifierFlags];
const bool cmdKey = (modifiers & NSCommandKeyMask) != 0;
const bool shiftKey = (modifiers & NSShiftKeyMask) != 0;
const bool cntrlKey = (modifiers & NSControlKeyMask) != 0;
const bool optKey = (modifiers & NSAlternateKeyMask) != 0;
const int keyCode = [event.os_event keyCode];
const unichar keyChar = KeyCharacterForEvent(event.os_event);
int cmdNum = CommandForWindowKeyboardShortcut(
cmdKey, shiftKey, cntrlKey, optKey, keyCode, keyChar);
if (cmdNum != -1)
return cmdNum;
cmdNum = CommandForBrowserKeyboardShortcut(
cmdKey, shiftKey, cntrlKey, optKey, keyCode, keyChar);
if (cmdNum != -1)
return cmdNum;
return -1;
}
+ (BOOL)handleKeyboardEvent:(NSEvent*)event
inWindow:(NSWindow*)window {
ChromeEventProcessingWindow* event_window =
static_cast<ChromeEventProcessingWindow*>(window);
DCHECK([event_window isKindOfClass:[ChromeEventProcessingWindow class]]);
// Do not fire shortcuts on key up.
if ([event type] == NSKeyDown) {
// Send the event to the menu before sending it to the browser/window
// shortcut handling, so that if a user configures cmd-left to mean
// "previous tab", it takes precedence over the built-in "history back"
// binding. Other than that, the |-redispatchKeyEvent:| call would take care
// of invoking the original menu item shortcut as well.
if ([[NSApp mainMenu] performKeyEquivalent:event])
return true;
if ([event_window handleExtraBrowserKeyboardShortcut:event])
return true;
if ([event_window handleExtraWindowKeyboardShortcut:event])
return true;
if ([event_window handleDelayedWindowKeyboardShortcut:event])
return true;
}
return [event_window redispatchKeyEvent:event];
}
+ (NSString*)scheduleReplaceOldTitle:(NSString*)oldTitle
withNewTitle:(NSString*)newTitle
forWindow:(NSWindow*)window {
if (oldTitle)
[[NSRunLoop currentRunLoop]
cancelPerformSelector:@selector(setTitle:)
target:window
argument:oldTitle];
[[NSRunLoop currentRunLoop]
performSelector:@selector(setTitle:)
target:window
argument:newTitle
order:0
modes:[NSArray arrayWithObject:NSDefaultRunLoopMode]];
return [newTitle copy];
}
// The titlebar/tabstrip header on the mac is slightly smaller than on Windows.
// There is also no window frame to the left and right of the web contents on
// mac.
// To keep:
// - the window background pattern (IDR_THEME_FRAME.*) lined up vertically with
// the tab and toolbar patterns
// - the toolbar pattern lined up horizontally with the NTP background.
// we have to shift the pattern slightly, rather than drawing from the top left
// corner of the frame / tabstrip. The offsets below were empirically determined
// in order to line these patterns up.
//
// This will make the themes look slightly different than in Windows/Linux
// because of the differing heights between window top and tab top, but this has
// been approved by UI.
const CGFloat kPatternHorizontalOffset = -5;
// Without tab strip, offset an extra pixel (determined by experimentation).
const CGFloat kPatternVerticalOffset = 2;
const CGFloat kPatternVerticalOffsetNoTabStrip = 3;
+ (NSPoint)themeImagePositionFor:(NSView*)windowView
withTabStrip:(NSView*)tabStripView
alignment:(ThemeImageAlignment)alignment {
if (!tabStripView) {
return NSMakePoint(kPatternHorizontalOffset,
NSHeight([windowView bounds]) +
kPatternVerticalOffsetNoTabStrip);
}
NSPoint position =
[BrowserWindowUtils themeImagePositionInTabStripCoords:tabStripView
alignment:alignment];
return [tabStripView convertPoint:position toView:windowView];
}
+ (NSPoint)themeImagePositionInTabStripCoords:(NSView*)tabStripView
alignment:(ThemeImageAlignment)alignment {
DCHECK(tabStripView);
if (alignment == THEME_IMAGE_ALIGN_WITH_TAB_STRIP) {
// The theme image is lined up with the top of the tab which is below the
// top of the tab strip.
return NSMakePoint(kPatternHorizontalOffset,
[TabStripController defaultTabHeight] +
kPatternVerticalOffset);
}
// The theme image is lined up with the top of the tab strip (as opposed to
// the top of the tab above). This is the same as lining up with the top of
// the window's root view when not in presentation mode.
return NSMakePoint(kPatternHorizontalOffset,
NSHeight([tabStripView bounds]) +
kPatternVerticalOffsetNoTabStrip);
}
+ (void)activateWindowForController:(NSWindowController*)controller {
// Per http://crbug.com/73779 and http://crbug.com/75223, we need this to
// properly activate windows if Chrome is not the active application.
[[controller window] makeKeyAndOrderFront:controller];
ProcessSerialNumber psn;
GetCurrentProcess(&psn);
SetFrontProcessWithOptions(&psn, kSetFrontProcessFrontWindowOnly);
}
@end
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