Home | History | Annotate | Download | only in infobars 
      1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #import "chrome/browser/ui/cocoa/infobars/infobar_utilities.h"
      6 
      7 #include "base/mac/scoped_nsobject.h"
      8 #import "chrome/browser/ui/cocoa/infobars/infobar_container_controller.h"
      9 #import "chrome/browser/ui/cocoa/infobars/infobar_gradient_view.h"
     10 #import "components/infobars/core/infobar.h"
     11 #import "ui/base/cocoa/nsview_additions.h"
     12 
     13 @interface InfobarLabelTextField : NSTextField
     14 @end
     15 
     16 @implementation InfobarLabelTextField
     17 
     18 - (void)drawRect:(NSRect)rect {
     19   NSView* infobarGradientView = [self superview];
     20   [self cr_drawUsingAncestor:infobarGradientView inRect:rect];
     21   [super drawRect:rect];
     22 }
     23 
     24 - (BOOL)isOpaque {
     25   return YES;
     26 }
     27 
     28 @end
     29 
     30 namespace InfoBarUtilities {
     31 
     32 // Move the |toMove| view |spacing| pixels before/after the |anchor| view.
     33 // |after| signifies the side of |anchor| on which to place |toMove|.
     34 void MoveControl(NSView* anchor, NSView* toMove, int spacing, bool after) {
     35   NSRect anchorFrame = [anchor frame];
     36   NSRect toMoveFrame = [toMove frame];
     37 
     38   // At the time of this writing, OS X doesn't natively support BiDi UIs, but
     39   // it doesn't hurt to be forward looking.
     40   bool toRight = after;
     41 
     42   if (toRight) {
     43     toMoveFrame.origin.x = NSMaxX(anchorFrame) + spacing;
     44   } else {
     45     // Place toMove to theleft of anchor.
     46     toMoveFrame.origin.x = NSMinX(anchorFrame) -
     47         spacing - NSWidth(toMoveFrame);
     48   }
     49   [toMove setFrame:toMoveFrame];
     50 }
     51 
     52 // Check that the control |before| is ordered visually before the |after|
     53 // control. Also, check that there is space between them.
     54 bool VerifyControlOrderAndSpacing(id before, id after) {
     55   NSRect beforeFrame = [before frame];
     56   NSRect afterFrame = [after frame];
     57   return NSMinX(afterFrame) >= NSMaxX(beforeFrame);
     58 }
     59 
     60 // Vertically center |toMove| in its container.
     61 void VerticallyCenterView(NSView* toMove) {
     62   NSRect superViewFrame = [[toMove superview] frame];
     63   NSRect viewFrame = [toMove frame];
     64   // If the superview is the infobar view, then subtract out the anti-spoof
     65   // height so that the content is centered in the content area of the infobar,
     66   // rather than in the total height (which includes the bulge).
     67   CGFloat superHeight = NSHeight(superViewFrame);
     68   if ([[toMove superview] isKindOfClass:[InfoBarGradientView class]])
     69     superHeight = infobars::InfoBar::kDefaultBarTargetHeight;
     70   viewFrame.origin.y =
     71       floor((superHeight - NSHeight(viewFrame)) / 2.0);
     72   [toMove setFrame:viewFrame];
     73 }
     74 
     75 // Creates a label control in the style we need for the infobar's labels
     76 // within |bounds|.
     77 NSTextField* CreateLabel(NSRect bounds) {
     78   NSTextField* ret = [[InfobarLabelTextField alloc] initWithFrame:bounds];
     79   [ret setEditable:NO];
     80   [ret setDrawsBackground:NO];
     81   [ret setBordered:NO];
     82   return ret;
     83 }
     84 
     85 // Adds an item with the specified properties to |menu|.
     86 void AddMenuItem(NSMenu *menu, id target, SEL selector, NSString* title,
     87     int tag, bool enabled, bool checked) {
     88   if (tag == -1) {
     89     [menu addItem:[NSMenuItem separatorItem]];
     90   } else {
     91     base::scoped_nsobject<NSMenuItem> item(
     92         [[NSMenuItem alloc] initWithTitle:title
     93                                    action:selector
     94                             keyEquivalent:@""]);
     95     [item setTag:tag];
     96     [menu addItem:item];
     97     [item setTarget:target];
     98     if (checked)
     99       [item setState:NSOnState];
    100     if (!enabled)
    101       [item setEnabled:NO];
    102   }
    103 }
    104 
    105 }  // namespace InfoBarUtilities
    106